feat: support nested blob function signatures

fix: preserve namespace drop errors (#4099 )
## Summary - preserve typed namespace errors returned by `drop_table` - return `TableNotFound` when dropping an absent namespace table - cover repeated drop behavior in the namespace database test ## Validation - `cargo test --quiet --features remote -p lancedb database::namespace::tests::test_namespace_drop_table --lib` - `cargo clippy --quiet --features remote -p lancedb --lib --tests -- -D warnings` ## Context Sophon SQL implements `DROP TABLE IF EXISTS` by matching `lancedb::Error::TableNotFound`. The namespace database previously wrapped this error as `Runtime`, causing cleanup to fail and mask an earlier statement error.
2026-09-01 11:08:55 +00:00 · 2026-09-01 16:54:15 +08:00 · 2026-08-31 14:02:40 -07:00 · 2026-08-31 10:40:11 -07:00 · 2026-08-31 22:34:34 +08:00 · 2026-08-31 22:17:11 +08:00
21 changed files with 837 additions and 279 deletions
@@ -535,9 +535,9 @@ dependencies = [

 [[package]]
 name = "async-trait"
-version = "0.1.91"
+version = "0.1.92"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ae36dc4177970ef04fde5178d3e2429882def40e57a451f919c098f72baa6cec"
+checksum = "82f6aeea286b8eb4dd3431a1be1b59d290ace00f5bfd8e2a159bc2a05e2c1667"
 dependencies = [
 "proc-macro2",
 "quote",
@@ -1443,9 +1443,9 @@ checksum = "175812e0be2bccb6abe50bb8d566126198344f707e304f45c648fd8f2cc0365e"

 [[package]]
 name = "bytemuck"
-version = "1.25.0"
+version = "1.25.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c8efb64bd706a16a1bdde310ae86b351e4d21550d98d056f22f8a7f7a2183fec"
+checksum = "95832e849adfb21180ccb6826a99da14e5d266ae5c2e668e1602cf234f153797"
 dependencies = [
 "bytemuck_derive",
 ]
@@ -3455,9 +3455,8 @@ checksum = "42703706b716c37f96a77aea830392ad231f44c9e9a67872fa5548707e11b11c"

 [[package]]
 name = "fsst"
-version = "11.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f727719438dfdb74f358a347c91ff81b6e7084a6421f34de3e473ce271f10caa"
+version = "12.0.0-beta.5"
+source = "git+https://github.com/lance-format/lance.git?tag=v12.0.0-beta.5#556637791d0048c2b4f1342dd84b67c8bbd65259"
 dependencies = [
 "arrow-array",
 "rand 0.9.5",
@@ -4816,9 +4815,8 @@ checksum = "e037a2e1d8d5fdbd49b16a4ea09d5d6401c1f29eca5ff29d03d3824dba16256a"

 [[package]]
 name = "lance"
-version = "11.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "be781f40c7a75f9eae2188a2f71174acb7a360dca97163db40b041d0828dea48"
+version = "12.0.0-beta.5"
+source = "git+https://github.com/lance-format/lance.git?tag=v12.0.0-beta.5#556637791d0048c2b4f1342dd84b67c8bbd65259"
 dependencies = [
 "arc-swap",
 "arrow",
@@ -4890,9 +4888,8 @@ dependencies = [

 [[package]]
 name = "lance-arrow"
-version = "11.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fb97fd9875f3036d7c2561aa5b16eb87b80ccabaa4eeb5e6099b19cc662f1cd8"
+version = "12.0.0-beta.5"
+source = "git+https://github.com/lance-format/lance.git?tag=v12.0.0-beta.5#556637791d0048c2b4f1342dd84b67c8bbd65259"
 dependencies = [
 "arrow-array",
 "arrow-buffer",
@@ -4914,8 +4911,7 @@ dependencies = [
 [[package]]
 name = "lance-arrow-scalar"
 version = "58.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "771f68b04b47f3addf781116f65061808de94b05e1e9411c23c18f32d14ebe79"
+source = "git+https://github.com/lance-format/lance.git?tag=v12.0.0-beta.5#556637791d0048c2b4f1342dd84b67c8bbd65259"
 dependencies = [
 "arrow-array",
 "arrow-buffer",
@@ -4929,20 +4925,17 @@ dependencies = [
 [[package]]
 name = "lance-arrow-stats"
 version = "58.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd47ec33c90bf29f688fd02118e37d3a5ad5c339caa3163f89e417dc0867001f"
+source = "git+https://github.com/lance-format/lance.git?tag=v12.0.0-beta.5#556637791d0048c2b4f1342dd84b67c8bbd65259"
 dependencies = [
 "arrow-array",
 "arrow-schema",
- "half",
 "lance-arrow-scalar",
 ]

 [[package]]
 name = "lance-bitpacking"
-version = "11.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6f45658c5b2dc9aada41b66ee44b83af3fa888b7385ae414bae951b12a9f1cd3"
+version = "12.0.0-beta.5"
+source = "git+https://github.com/lance-format/lance.git?tag=v12.0.0-beta.5#556637791d0048c2b4f1342dd84b67c8bbd65259"
 dependencies = [
 "arrayref",
 "crunchy",
@@ -4952,9 +4945,8 @@ dependencies = [

 [[package]]
 name = "lance-core"
-version = "11.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "27af3df3a7d08897efccd04461df31cedf0880c4b86a055ddce48e423d27f967"
+version = "12.0.0-beta.5"
+source = "git+https://github.com/lance-format/lance.git?tag=v12.0.0-beta.5#556637791d0048c2b4f1342dd84b67c8bbd65259"
 dependencies = [
 "arrow-array",
 "arrow-buffer",
@@ -4991,9 +4983,8 @@ dependencies = [

 [[package]]
 name = "lance-datafusion"
-version = "11.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c377f837df5296e92f9fad724c83c1bef4e74d5af6e5a9312e9307e1dead8614"
+version = "12.0.0-beta.5"
+source = "git+https://github.com/lance-format/lance.git?tag=v12.0.0-beta.5#556637791d0048c2b4f1342dd84b67c8bbd65259"
 dependencies = [
 "arrow",
 "arrow-array",
@@ -5022,9 +5013,8 @@ dependencies = [

 [[package]]
 name = "lance-datagen"
-version = "11.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "778e1a5065fa4bc184e36e32681f10f8f4680ad8cedc9377b4c088dce8c5b8da"
+version = "12.0.0-beta.5"
+source = "git+https://github.com/lance-format/lance.git?tag=v12.0.0-beta.5#556637791d0048c2b4f1342dd84b67c8bbd65259"
 dependencies = [
 "arrow",
 "arrow-array",
@@ -5041,9 +5031,8 @@ dependencies = [

 [[package]]
 name = "lance-derive"
-version = "11.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "13e5e95e0fd3d74f7938f4bee623041421b323b5c61f242c8622a1f48a202527"
+version = "12.0.0-beta.5"
+source = "git+https://github.com/lance-format/lance.git?tag=v12.0.0-beta.5#556637791d0048c2b4f1342dd84b67c8bbd65259"
 dependencies = [
 "proc-macro2",
 "quote",
@@ -5052,9 +5041,8 @@ dependencies = [

 [[package]]
 name = "lance-encoding"
-version = "11.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1625653c55c65f3426e281f6e29b54c603f38a40bd4cebd707bd4f3ea48be6c5"
+version = "12.0.0-beta.5"
+source = "git+https://github.com/lance-format/lance.git?tag=v12.0.0-beta.5#556637791d0048c2b4f1342dd84b67c8bbd65259"
 dependencies = [
 "arrow-arith",
 "arrow-array",
@@ -5087,9 +5075,8 @@ dependencies = [

 [[package]]
 name = "lance-file"
-version = "11.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b7e13c9266b478fc98f36ee19347c4658f7a6613fed77778b1a455fe1b88552e"
+version = "12.0.0-beta.5"
+source = "git+https://github.com/lance-format/lance.git?tag=v12.0.0-beta.5#556637791d0048c2b4f1342dd84b67c8bbd65259"
 dependencies = [
 "arrow-arith",
 "arrow-array",
@@ -5120,9 +5107,8 @@ dependencies = [

 [[package]]
 name = "lance-index"
-version = "11.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b0e0cb95f2c4f341c4dd04ac60f6a89ea26a6f75e09570225cbda4854c8b088e"
+version = "12.0.0-beta.5"
+source = "git+https://github.com/lance-format/lance.git?tag=v12.0.0-beta.5#556637791d0048c2b4f1342dd84b67c8bbd65259"
 dependencies = [
 "arc-swap",
 "arrow",
@@ -5186,9 +5172,8 @@ dependencies = [

 [[package]]
 name = "lance-index-core"
-version = "11.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "79ccd371977c1f7168da259d66ad37154f23146f093d46136bc7f79559f00f2c"
+version = "12.0.0-beta.5"
+source = "git+https://github.com/lance-format/lance.git?tag=v12.0.0-beta.5#556637791d0048c2b4f1342dd84b67c8bbd65259"
 dependencies = [
 "arrow-array",
 "arrow-schema",
@@ -5210,9 +5195,8 @@ dependencies = [

 [[package]]
 name = "lance-io"
-version = "11.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "414d50997391b1ac83dc183c1612fdff88f58b959806078dc4c5e465154566de"
+version = "12.0.0-beta.5"
+source = "git+https://github.com/lance-format/lance.git?tag=v12.0.0-beta.5#556637791d0048c2b4f1342dd84b67c8bbd65259"
 dependencies = [
 "arrow",
 "arrow-array",
@@ -5252,9 +5236,8 @@ dependencies = [

 [[package]]
 name = "lance-linalg"
-version = "11.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6ff55b152ef23a56d7ba7e4d1b2c9cf0cc79aef6ee607c115597557ea4059f41"
+version = "12.0.0-beta.5"
+source = "git+https://github.com/lance-format/lance.git?tag=v12.0.0-beta.5#556637791d0048c2b4f1342dd84b67c8bbd65259"
 dependencies = [
 "arrow-array",
 "arrow-schema",
@@ -5268,9 +5251,8 @@ dependencies = [

 [[package]]
 name = "lance-namespace"
-version = "11.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09991c13ab282b731e323619613914e08da9cc82b312f904e58c128b23f2f0e3"
+version = "12.0.0-beta.5"
+source = "git+https://github.com/lance-format/lance.git?tag=v12.0.0-beta.5#556637791d0048c2b4f1342dd84b67c8bbd65259"
 dependencies = [
 "arrow",
 "async-trait",
@@ -5282,9 +5264,8 @@ dependencies = [

 [[package]]
 name = "lance-namespace-impls"
-version = "11.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0ec0bc005f6bb8f120774eb4a9ba02e10463d8338167a46cbb1391d46680a174"
+version = "12.0.0-beta.5"
+source = "git+https://github.com/lance-format/lance.git?tag=v12.0.0-beta.5#556637791d0048c2b4f1342dd84b67c8bbd65259"
 dependencies = [
 "arrow",
 "arrow-ipc",
@@ -5337,9 +5318,8 @@ dependencies = [

 [[package]]
 name = "lance-select"
-version = "11.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e8f676a2a1837cc85b77feb5326d3296827da964e40d67144f646563302a6ce9"
+version = "12.0.0-beta.5"
+source = "git+https://github.com/lance-format/lance.git?tag=v12.0.0-beta.5#556637791d0048c2b4f1342dd84b67c8bbd65259"
 dependencies = [
 "arrow-array",
 "arrow-buffer",
@@ -5353,9 +5333,8 @@ dependencies = [

 [[package]]
 name = "lance-table"
-version = "11.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bd33054347395048b1d842dfb85a13f7801392c2da5f39425db62f00a481744b"
+version = "12.0.0-beta.5"
+source = "git+https://github.com/lance-format/lance.git?tag=v12.0.0-beta.5#556637791d0048c2b4f1342dd84b67c8bbd65259"
 dependencies = [
 "arrow",
 "arrow-array",
@@ -5395,9 +5374,8 @@ dependencies = [

 [[package]]
 name = "lance-testing"
-version = "11.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ecc9ad9ae24f045dfddd538a39e55a28fa7e1ca6ad9f23e20d4087eaf2bb66f7"
+version = "12.0.0-beta.5"
+source = "git+https://github.com/lance-format/lance.git?tag=v12.0.0-beta.5#556637791d0048c2b4f1342dd84b67c8bbd65259"
 dependencies = [
 "arrow-array",
 "arrow-schema",
@@ -5410,9 +5388,8 @@ dependencies = [

 [[package]]
 name = "lance-tokenizer"
-version = "11.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3bfa6f0164c8b7056150f5682ce4d415a335b59b04c479873fda04b200117d27"
+version = "12.0.0-beta.5"
+source = "git+https://github.com/lance-format/lance.git?tag=v12.0.0-beta.5#556637791d0048c2b4f1342dd84b67c8bbd65259"
 dependencies = [
 "frostem",
 "icu_segmenter",
@@ -5425,7 +5402,7 @@ dependencies = [

 [[package]]
 name = "lancedb"
-version = "0.38.0-beta.15"
+version = "0.38.0"
 dependencies = [
 "ahash",
 "anyhow",
@@ -5513,7 +5490,7 @@ dependencies = [

 [[package]]
 name = "lancedb-nodejs"
-version = "0.38.0-beta.15"
+version = "0.38.0"
 dependencies = [
 "arrow-array",
 "arrow-buffer",
@@ -5538,7 +5515,7 @@ dependencies = [

 [[package]]
 name = "lancedb-python"
-version = "0.38.0-beta.15"
+version = "0.38.0"
 dependencies = [
 "arrow",
 "async-trait",
@@ -5771,9 +5748,9 @@ dependencies = [

 [[package]]
 name = "log"
-version = "0.4.33"
+version = "0.4.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0ceec5bc11778974d1bcb055b18002eba7f4b3518b6a0081b3af5f21666da9ad"
+checksum = "f9f8bd3e56ce4dfc153cf470fffbfa98c7620958b312ca5c3a4b8d5181fd13c6"

 [[package]]
 name = "loom"
@@ -6024,9 +6001,9 @@ dependencies = [

 [[package]]
 name = "moka"
-version = "0.12.15"
+version = "0.12.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "957228ad12042ee839f93c8f257b62b4c0ab5eaae1d4fa60de53b27c9d7c5046"
+checksum = "4293f18e7567a1caf3c584855554377025c65e0aa445344d04171f5ad63d19b9"
 dependencies = [
 "async-lock",
 "crossbeam-channel",
@@ -6120,14 +6097,15 @@ dependencies = [

 [[package]]
 name = "napi"
-version = "3.11.0"
+version = "3.12.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "de33522036981030a75c231829566bc63414e08101a6f5ff4ac6cef19c8e0941"
+checksum = "58c5f4d5375213fdb7be2655e152386e82f026f9a5ba36a75556e11359aafe09"
 dependencies = [
 "bitflags 2.11.1",
 "chrono",
 "ctor 1.0.12",
 "futures",
+ "libc",
 "napi-build",
 "napi-sys",
 "nohash-hasher",
@@ -6139,15 +6117,15 @@ dependencies = [

 [[package]]
 name = "napi-build"
-version = "2.4.0"
+version = "2.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5282704fbe8d49b0cf8b08e3f33233416a528658f205c7e5ace63b582de0b11c"
+checksum = "60fdf9b392c50e7c4170fa633bd909490ed7835cea4c046776d1a4dd8d2ae0ab"

 [[package]]
 name = "napi-derive"
-version = "3.6.1"
+version = "3.6.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4d5c9c02556ea6dc99dffd36c1ce60141411657438501a125b675776d011ce92"
+checksum = "0fa55ea69990c90b888e9e77044410e304ce7f35de599dc6d0b5c1923d2e59af"
 dependencies = [
 "convert_case",
 "ctor 1.0.12",
@@ -6159,9 +6137,9 @@ dependencies = [

 [[package]]
 name = "napi-derive-backend"
-version = "6.1.1"
+version = "6.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d60b5d773ad46c698c8cc2cd9fde0b283d39cbb7f71c04bee633c7bdba4423bd"
+checksum = "df4056ac7c18e4438ccf0edaed4340ca0d269278c8ec19284f7b23cb039fd0ae"
 dependencies = [
 "convert_case",
 "proc-macro2",
@@ -8624,9 +8602,9 @@ dependencies = [

 [[package]]
 name = "roaring"
-version = "0.11.4"
+version = "0.11.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1dedc5658c6ecb3bdb5ef5f3295bb9253f42dcf3fd1402c03f6b1f7659c3c4a9"
+checksum = "18bd8a37d17a58532776dcdf6041ce64929adca78e8489d5cacbafe99229d3e1"
 dependencies = [
 "bytemuck",
 "byteorder",
@@ -9086,9 +9064,9 @@ dependencies = [

 [[package]]
 name = "serde_with"
-version = "3.21.0"
+version = "3.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "76a5c54c7310e7b8b9577c286d7e399ddd876c3e12b3ed917a8aabc4b96e9e8c"
+checksum = "ee78f1fbe43ac4a0e47aadb3dbd357b69eb0d3793e948624cd03dd2750ab1c0a"
 dependencies = [
 "base64 0.22.1",
 "bs58",
@@ -9096,6 +9074,7 @@ dependencies = [
 "hex",
 "indexmap 1.9.3",
 "indexmap 2.14.0",
+ "jiff",
 "schemars 0.9.0",
 "schemars 1.2.1",
 "serde_core",
@@ -9106,9 +9085,9 @@ dependencies = [

 [[package]]
 name = "serde_with_macros"
-version = "3.21.0"
+version = "3.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "84d57bc0c8b9a17920c178daa6bb924850d54a9c97ab45194bb8c17ad66bb660"
+checksum = "8705578779c2b6bd90d84d66eb2e206b708b1a4d7b9f17641b293545bf1c7e46"
 dependencies = [
 "darling 0.23.0",
 "proc-macro2",
@@ -10475,9 +10454,9 @@ checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"

 [[package]]
 name = "uuid"
-version = "1.24.0"
+version = "1.26.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bf3923a6f5c4c6382e0b653c4117f48d631ea17f38ed86e2a828e6f7412f5239"
+checksum = "b5772d71c9be8a8a6ac2117d949c5b224c1b72241bb611d9a3012edcf8af7812"
 dependencies = [
 "getrandom 0.4.2",
 "js-sys",
@@ -13,20 +13,20 @@ categories = ["database-implementations"]
 rust-version = "1.91.0"

 [workspace.dependencies]
-lance = { "version" = "=11.0.0", default-features = false }
-lance-core = "=11.0.0"
-lance-datagen = "=11.0.0"
-lance-file = "=11.0.0"
-lance-io = { "version" = "=11.0.0", default-features = false }
-lance-index = "=11.0.0"
-lance-linalg = "=11.0.0"
-lance-namespace = "=11.0.0"
-lance-namespace-impls = { "version" = "=11.0.0", default-features = false }
-lance-table = "=11.0.0"
-lance-testing = "=11.0.0"
-lance-datafusion = "=11.0.0"
-lance-encoding = "=11.0.0"
-lance-arrow = "=11.0.0"
+lance = { "version" = "=12.0.0-beta.5", default-features = false, "tag" = "v12.0.0-beta.5", "git" = "https://github.com/lance-format/lance.git" }
+lance-core = { "version" = "=12.0.0-beta.5", "tag" = "v12.0.0-beta.5", "git" = "https://github.com/lance-format/lance.git" }
+lance-datagen = { "version" = "=12.0.0-beta.5", "tag" = "v12.0.0-beta.5", "git" = "https://github.com/lance-format/lance.git" }
+lance-file = { "version" = "=12.0.0-beta.5", "tag" = "v12.0.0-beta.5", "git" = "https://github.com/lance-format/lance.git" }
+lance-io = { "version" = "=12.0.0-beta.5", default-features = false, "tag" = "v12.0.0-beta.5", "git" = "https://github.com/lance-format/lance.git" }
+lance-index = { "version" = "=12.0.0-beta.5", "tag" = "v12.0.0-beta.5", "git" = "https://github.com/lance-format/lance.git" }
+lance-linalg = { "version" = "=12.0.0-beta.5", "tag" = "v12.0.0-beta.5", "git" = "https://github.com/lance-format/lance.git" }
+lance-namespace = { "version" = "=12.0.0-beta.5", "tag" = "v12.0.0-beta.5", "git" = "https://github.com/lance-format/lance.git" }
+lance-namespace-impls = { "version" = "=12.0.0-beta.5", default-features = false, "tag" = "v12.0.0-beta.5", "git" = "https://github.com/lance-format/lance.git" }
+lance-table = { "version" = "=12.0.0-beta.5", "tag" = "v12.0.0-beta.5", "git" = "https://github.com/lance-format/lance.git" }
+lance-testing = { "version" = "=12.0.0-beta.5", "tag" = "v12.0.0-beta.5", "git" = "https://github.com/lance-format/lance.git" }
+lance-datafusion = { "version" = "=12.0.0-beta.5", "tag" = "v12.0.0-beta.5", "git" = "https://github.com/lance-format/lance.git" }
+lance-encoding = { "version" = "=12.0.0-beta.5", "tag" = "v12.0.0-beta.5", "git" = "https://github.com/lance-format/lance.git" }
+lance-arrow = { "version" = "=12.0.0-beta.5", "tag" = "v12.0.0-beta.5", "git" = "https://github.com/lance-format/lance.git" }
 lancedb = { path = "rust/lancedb", default-features = false }
 ahash = "0.8"
 # Note that this one does not include pyarrow
@@ -28,7 +28,7 @@
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <arrow.version>15.0.0</arrow.version>
-        <lance-core.version>11.0.0</lance-core.version>
+        <lance-core.version>12.0.0-beta.5</lance-core.version>
        <spotless.skip>false</spotless.skip>
        <spotless.version>2.30.0</spotless.version>
        <spotless.java.googlejavaformat.version>1.7</spotless.java.googlejavaformat.version>
@@ -664,7 +664,11 @@ impl JsFullTextQuery {
 }

 fn parse_fts_query(query: Object) -> napi::Result<FullTextSearchQuery> {
-    if let Ok(Some(query)) = query.get::<&JsFullTextQuery>("query") {
+    // `&JsFullTextQuery` recovers a native class reference through napi's borrow-tracked
+    // path, which is only usable from generated `#[napi]` argument conversion. This is a
+    // manual lookup on a nested `Object` property instead, so use `ClassInstance`, which
+    // unwraps the class without requiring a borrow scope.
+    if let Ok(Some(query)) = query.get::<ClassInstance<JsFullTextQuery>>("query") {
        Ok(FullTextSearchQuery::new_query(query.inner.clone()))
    } else if let Ok(Some(query_text)) = query.get::<String>("query") {
        let mut query_text = query_text;
@@ -150,6 +150,7 @@ class Connection(object):
    def job(self, job_id: str) -> Job: ...
    async def create_function_async(self, request_json: str) -> Job: ...
    async def get_function(self, name: str, version: str) -> str: ...
+    async def drop_function(self, name: str, version: str) -> bool: ...
    async def list_jobs(self) -> List[JobInfo]: ...
    async def get_job(self, job_id: str) -> Optional[JobDescription]: ...
    async def cancel_job(self, job_id: str) -> bool: ...
@@ -712,6 +712,16 @@ class DBConnection(EnforceOverrides):
            "Function catalog operations are not supported for this connection type"
        )

+    def drop_function(self, name: str, *, version: str) -> bool:
+        """Drop one exact immutable Function version from the remote catalog.
+
+        Returns True when the version changed to Dropped and False for an
+        idempotent replay. Local connections raise NotImplementedError.
+        """
+        raise NotImplementedError(
+            "Function catalog operations are not supported for this connection type"
+        )
+
    def job(self, job_id: str) -> Job:
        """A [Job][lancedb.job.Job] handle for a server-side job by id.

@@ -1413,6 +1423,10 @@ class LanceDBConnection(DBConnection):
    def get_function(self, name: str, *, version: str) -> FunctionVersion:
        return LOOP.run(self._conn.get_function(name, version=version))

+    @override
+    def drop_function(self, name: str, *, version: str) -> bool:
+        return LOOP.run(self._conn.drop_function(name, version=version))
+
    @override
    def list_jobs(self) -> List[JobInfo]:
        """List server-side jobs across the database's tables."""
@@ -2243,6 +2257,10 @@ class AsyncConnection(object):
        """Open one exact immutable Function version from the remote catalog."""
        return FunctionVersion.from_json(await self._inner.get_function(name, version))

+    async def drop_function(self, name: str, *, version: str) -> bool:
+        """Drop one exact immutable Function version from the remote catalog."""
+        return await self._inner.drop_function(name, version)
+
    async def list_jobs(self) -> List[JobInfo]:
        """List server-side jobs across the database's tables."""
        return await self._inner.list_jobs()
@@ -521,6 +521,12 @@ class RefreshColumnResult(_RemoteValue):

 _FUNCTION_NAME = re.compile(r"^[A-Za-z_][A-Za-z0-9_.-]*$")
 _FUNCTION_BLOB_V2_TYPE = "blob_v2"
+_ARROW_EXTENSION_NAME_KEY = "ARROW:extension:name"
+_BLOB_V2_EXTENSION_NAME = "lance.blob.v2"
+_NESTED_BLOB_COLLECTION_ERROR = (
+    "unsupported Arrow type for Function signature: Blob v2 fields nested under "
+    "collection types are not supported"
+)


 _GRAMMAR_PRIMITIVES = (
@@ -591,6 +597,19 @@ def _validate_exact_arrow_field(field: pa.Field) -> None:
                "unsupported Arrow type for Function signature: lance.blob.v2 "
                f"requires a supported Blob storage layout, got {field}"
            )
+        metadata = {
+            (key.decode() if isinstance(key, bytes) else key): (
+                value.decode() if isinstance(value, bytes) else value
+            )
+            for key, value in (field.metadata or {}).items()
+        }
+        if metadata and metadata != {
+            _ARROW_EXTENSION_NAME_KEY: _BLOB_V2_EXTENSION_NAME
+        }:
+            raise TypeError(
+                "unsupported Arrow type for Function signature: lance.blob.v2 "
+                "field metadata must contain only its canonical extension marker"
+            )
    elif field.metadata:
        raise TypeError(
            "unsupported Arrow type for Function signature: field metadata "
@@ -655,23 +674,84 @@ def _canonical_arrow_field(field: pa.Field) -> str:
    return _canonical_arrow_type(field.type)


-def _exact_arrow_field(field: pa.Field) -> dict[str, Any]:
+def _blob_storage_type(field: pa.Field) -> pa.DataType:
+    data_type = field.type
+    if isinstance(data_type, pa.ExtensionType):
+        return data_type.storage_type
+    return data_type
+
+
+def _exact_blob_storage_type(field: pa.Field) -> dict[str, Any]:
+    storage = _blob_storage_type(field)
+    if not pa.types.is_struct(storage):
+        raise TypeError(
+            "unsupported Arrow type for Function signature: lance.blob.v2 "
+            "requires struct storage"
+        )
+    return {
+        "type": "struct",
+        "fields": [
+            {
+                "name": child.name,
+                "nullable": child.nullable,
+                "type": (
+                    {"type": "large_binary"}
+                    if pa.types.is_large_binary(child.type)
+                    else _exact_arrow_type(child.type)
+                ),
+            }
+            for child in storage
+        ],
+    }
+
+
+def _data_type_has_blob_v2(data_type: pa.DataType) -> bool:
+    if pa.types.is_struct(data_type):
+        return any(
+            _is_blob_v2_field(field) or _data_type_has_blob_v2(field.type)
+            for field in data_type
+        )
+    if (
+        pa.types.is_list(data_type)
+        or pa.types.is_large_list(data_type)
+        or pa.types.is_fixed_size_list(data_type)
+    ):
+        field = data_type.value_field
+        return _is_blob_v2_field(field) or _data_type_has_blob_v2(field.type)
+    if pa.types.is_map(data_type):
+        return any(
+            _is_blob_v2_field(field) or _data_type_has_blob_v2(field.type)
+            for field in (data_type.key_field, data_type.item_field)
+        )
+    return False
+
+
+def _exact_arrow_field(
+    field: pa.Field, *, inside_collection: bool = False
+) -> dict[str, Any]:
    _validate_exact_arrow_field(field)
    if _is_blob_v2_field(field):
-        raise TypeError(
-            "unsupported Arrow type for Function signature: nested Blob v2 "
-            "fields are not supported; declare Blob parameters or named result "
-            "fields directly"
-        )
+        if inside_collection:
+            raise TypeError(_NESTED_BLOB_COLLECTION_ERROR)
+        return {
+            "name": field.name,
+            "nullable": field.nullable,
+            "type": _exact_blob_storage_type(field),
+            "metadata": {
+                _ARROW_EXTENSION_NAME_KEY: _BLOB_V2_EXTENSION_NAME,
+            },
+        }
    value = {
        "name": field.name,
        "nullable": field.nullable,
-        "type": _exact_arrow_type(field.type),
+        "type": _exact_arrow_type(field.type, inside_collection=inside_collection),
    }
    return value


-def _exact_arrow_type(data_type: pa.DataType) -> dict[str, Any]:
+def _exact_arrow_type(
+    data_type: pa.DataType, *, inside_collection: bool = False
+) -> dict[str, Any]:
    for candidate, name in _GRAMMAR_PRIMITIVES:
        if data_type == candidate:
            return {"type": name}
@@ -685,7 +765,10 @@ def _exact_arrow_type(data_type: pa.DataType) -> dict[str, Any]:
            )
        return {
            "type": "struct",
-            "fields": [_exact_arrow_field(field) for field in fields],
+            "fields": [
+                _exact_arrow_field(field, inside_collection=inside_collection)
+                for field in fields
+            ],
        }
    if (
        pa.types.is_list(data_type)
@@ -710,11 +793,15 @@ def _exact_arrow_type(data_type: pa.DataType) -> dict[str, Any]:
                if pa.types.is_large_list(data_type)
                else "fixed_size_list"
            ),
-            "fields": [_exact_arrow_field(data_type.value_field)],
+            "fields": [
+                _exact_arrow_field(data_type.value_field, inside_collection=True)
+            ],
        }
        if pa.types.is_fixed_size_list(data_type):
            value["length"] = data_type.list_size
        return value
+    if pa.types.is_map(data_type) and _data_type_has_blob_v2(data_type):
+        raise TypeError(_NESTED_BLOB_COLLECTION_ERROR)
    raise TypeError(f"unsupported Arrow type for Function signature: {data_type}")


@@ -749,6 +749,10 @@ class RemoteDBConnection(DBConnection):
    def get_function(self, name: str, *, version: str) -> FunctionVersion:
        return LOOP.run(self._conn.get_function(name, version=version))

+    @override
+    def drop_function(self, name: str, *, version: str) -> bool:
+        return LOOP.run(self._conn.drop_function(name, version=version))
+
    @override
    def list_jobs(self) -> List["JobInfo"]:
        """List server-side jobs across the database's tables."""
@@ -12,6 +12,8 @@ from datetime import date
 import http.server
 import json
 from pathlib import Path
+import subprocess
+import sys
 import threading
 from typing import Optional

@@ -67,6 +69,80 @@ def test_scalar_udf_matches_shared_registration_golden_and_remains_callable():
    }


+def _main_udf_source(
+    *, threshold: int = 20, input_annotation: str = "int", comparison: str = ">="
+) -> str:
+    return (
+        "from __future__ import annotations\n"
+        "from lancedb.functions import udf\n"
+        f"THRESHOLD = {threshold}\n"
+        "\n"
+        "@udf\n"
+        f"def label(value: {input_annotation}) -> str:\n"
+        f"    return 'big' if value {comparison} THRESHOLD else 'small'\n"
+        "\n"
+        "assert label.__module__ == '__main__'\n"
+        "print(label.registration_request.to_canonical_json())\n"
+    )
+
+
+def _run_main_udf(path: Path, source: str) -> dict:
+    path.parent.mkdir(parents=True, exist_ok=True)
+    path.write_text(source)
+    result = subprocess.run(
+        [sys.executable, str(path)],
+        check=True,
+        capture_output=True,
+        text=True,
+    )
+    return json.loads(result.stdout)
+
+
+def test_main_udf_registration_identity_is_stable_across_processes_and_paths(
+    tmp_path,
+):
+    source = _main_udf_source()
+    original_path = tmp_path / "original" / "job.py"
+    moved_path = tmp_path / "moved" / "renamed_job.py"
+
+    original_runs = [_run_main_udf(original_path, source) for _ in range(2)]
+    moved_run = _run_main_udf(moved_path, source)
+
+    assert len({run["artifact"]["digest"] for run in [*original_runs, moved_run]}) == 1
+    assert all(
+        run["signature"] == original_runs[0]["signature"]
+        for run in [original_runs[1], moved_run]
+    )
+    assert original_runs[0] == original_runs[1] == moved_run
+
+    body_change = _run_main_udf(
+        tmp_path / "changes" / "body.py", _main_udf_source(comparison=">")
+    )
+    global_change = _run_main_udf(
+        tmp_path / "changes" / "global.py", _main_udf_source(threshold=21)
+    )
+    annotation_change = _run_main_udf(
+        tmp_path / "changes" / "annotation.py",
+        _main_udf_source(input_annotation="float"),
+    )
+
+    baseline = original_runs[0]
+    assert baseline["signature"] == body_change["signature"]
+    assert baseline["signature"] == global_change["signature"]
+    assert baseline["signature"] != annotation_change["signature"]
+    assert (
+        len(
+            {
+                baseline["artifact"]["digest"],
+                body_change["artifact"]["digest"],
+                global_change["artifact"]["digest"],
+                annotation_change["artifact"]["digest"],
+            }
+        )
+        == 4
+    )
+
+
 def _run_packaged(definition, *args):
    """Execute the shipped artifact in a fresh namespace, as a worker would."""
    source = base64.b64decode(definition.registration_request.artifact.content.data)
@@ -592,6 +668,167 @@ def test_blob_fields_use_the_scalar_function_semantic_type():
    assert signature.output.arrow_type == "blob_v2"


+def test_whole_named_struct_function_can_include_a_blob_result_field():
+    @udf(
+        input_schema=pa.schema([lancedb.blob("image", nullable=False)]),
+        output_schema=pa.field(
+            "payload",
+            pa.struct(
+                [
+                    pa.field("mime_type", pa.string(), nullable=False),
+                    lancedb.blob("image", nullable=False),
+                ]
+            ),
+            nullable=False,
+        ),
+    )
+    def inspect_blob(image):
+        return {"mime_type": "image/png", "image": image}
+
+    output = inspect_blob.registration_request.signature.output
+    assert output.kind == "named_struct"
+    assert [(field.name, field.arrow_type) for field in output.fields] == [
+        ("mime_type", "utf8"),
+        ("image", "blob_v2"),
+    ]
+
+
+def test_struct_blob_signature_fields_preserve_exact_metadata_and_nullability():
+    nested_input = pa.field(
+        "payload",
+        pa.struct(
+            [
+                pa.field("mime_type", pa.string(), nullable=False),
+                pa.field(
+                    "nested",
+                    pa.struct([lancedb.blob("image", nullable=True)]),
+                    nullable=True,
+                ),
+            ]
+        ),
+        nullable=True,
+    )
+    nested_output = pa.field(
+        "result",
+        pa.struct(
+            [
+                pa.field("mime_type", pa.string(), nullable=False),
+                pa.field(
+                    "nested",
+                    pa.struct([lancedb.blob("image", nullable=True)]),
+                    nullable=False,
+                ),
+            ]
+        ),
+        nullable=False,
+    )
+
+    @udf(input_schema=pa.schema([nested_input]), output_schema=nested_output)
+    def copy_payload(payload):
+        return payload
+
+    signature = copy_payload.registration_request.signature
+    input_type = json.loads(signature.inputs[0].arrow_type)
+    assert input_type["fields"][1]["nullable"] is True
+    input_blob = input_type["fields"][1]["type"]["fields"][0]
+    assert input_blob["nullable"] is True
+    assert input_blob["metadata"] == {"ARROW:extension:name": "lance.blob.v2"}
+
+    assert signature.output.kind == "named_struct"
+    nested_result = next(
+        field for field in signature.output.fields if field.name == "nested"
+    )
+    output_type = json.loads(nested_result.arrow_type)
+    output_blob = output_type["fields"][0]
+    assert output_blob["nullable"] is True
+    assert output_blob["metadata"] == {"ARROW:extension:name": "lance.blob.v2"}
+
+
+def test_struct_blob_signature_supports_multiple_struct_levels():
+    recursive = pa.field(
+        "value",
+        pa.struct(
+            [
+                pa.field(
+                    "level_1",
+                    pa.struct(
+                        [
+                            pa.field(
+                                "level_2",
+                                pa.struct([lancedb.blob("image", nullable=False)]),
+                                nullable=False,
+                            )
+                        ]
+                    ),
+                    nullable=False,
+                )
+            ]
+        ),
+        nullable=False,
+    )
+
+    @udf(
+        input_schema=pa.schema([recursive]),
+        output_schema=pa.field("size", pa.int64(), nullable=False),
+    )
+    def blob_size(value):
+        return len(value["level_1"]["level_2"]["image"])
+
+    encoded = json.loads(blob_size.registration_request.signature.inputs[0].arrow_type)
+    blob = encoded["fields"][0]["type"]["fields"][0]["type"]["fields"][0]
+    assert blob["metadata"]["ARROW:extension:name"] == "lance.blob.v2"
+
+
+@pytest.mark.parametrize(
+    "data_type",
+    [
+        pa.list_(lancedb.blob("item", nullable=False)),
+        pa.large_list(lancedb.blob("item", nullable=False)),
+        pa.list_(lancedb.blob("item", nullable=False), 2),
+        pa.map_(pa.string(), lancedb.blob("value", nullable=False).type),
+    ],
+)
+def test_blob_signature_rejects_collection_ancestors(data_type):
+    with pytest.raises(
+        TypeError,
+        match="Blob v2 fields nested under collection types are not supported",
+    ):
+
+        @udf(
+            input_schema=pa.schema([pa.field("value", data_type, nullable=False)]),
+            output_schema=pa.field("size", pa.int64(), nullable=False),
+        )
+        def blob_size(value):
+            return len(value)
+
+
+def test_blob_signature_rejects_collection_below_a_struct():
+    nested = pa.field(
+        "value",
+        pa.struct(
+            [
+                pa.field(
+                    "images",
+                    pa.list_(lancedb.blob("item", nullable=False)),
+                    nullable=False,
+                )
+            ]
+        ),
+        nullable=False,
+    )
+    with pytest.raises(
+        TypeError,
+        match="Blob v2 fields nested under collection types are not supported",
+    ):
+
+        @udf(
+            input_schema=pa.schema([nested]),
+            output_schema=pa.field("size", pa.int64(), nullable=False),
+        )
+        def blob_size(value):
+            return len(value["images"])
+
+
 def test_named_struct_function_can_include_a_blob_result_field():
    @udf(
        input_schema=pa.schema([lancedb.blob("image", nullable=False)]),
@@ -653,22 +890,6 @@ def test_blob_marker_rejects_invalid_storage_layout():
            return len(image)


-def test_nested_blob_signature_field_has_a_clear_error():
-    nested = pa.field(
-        "value",
-        pa.struct([lancedb.blob("image", nullable=False)]),
-        nullable=False,
-    )
-    with pytest.raises(TypeError, match="nested Blob v2 fields are not supported"):
-
-        @udf(
-            input_schema=pa.schema([nested]),
-            output_schema=pa.field("size", pa.int64(), nullable=False),
-        )
-        def blob_size(value):
-            return len(value["image"])
-
-
 def test_nested_non_blob_extension_is_not_silently_unwrapped():
    class TestExtension(pa.ExtensionType):
        def __init__(self):
@@ -941,6 +1162,8 @@ def test_local_function_catalog_operations_are_not_supported(tmp_path):
        db.create_function_async(normalize_score)
    with pytest.raises(NotImplementedError, match=message):
        db.get_function("normalize_score", version="fv_exact")
+    with pytest.raises(NotImplementedError, match=message):
+        db.drop_function("normalize_score", version="fv_exact")


@contextlib.contextmanager
@@ -986,6 +1209,12 @@ def _mock_remote_function_catalog():
                    "version": "fv_exact",
                }
                response = state["version"]
+            elif self.path == "/v1/functions/drop":
+                assert body == {
+                    "name": "normalize_score",
+                    "version": "fv_exact",
+                }
+                response = {"dropped": True}
            else:
                status = 404
                response = {"error": "not found"}
@@ -1044,3 +1273,40 @@ def test_blocking_remote_registration_returns_function_version():
        "/v1/functions/create",
        "/v1/jobs/describe",
    ]
+
+
+def test_remote_drop_function_sends_exact_version():
+    with _mock_remote_function_catalog() as (host, state):
+        db = lancedb.connect(
+            "db://dev",
+            api_key="fake",
+            host_override=host,
+            client_config={"retry_config": {"retries": 0}},
+        )
+        assert db.drop_function("normalize_score", version="fv_exact") is True
+
+    assert state["requests"] == [
+        (
+            "/v1/functions/drop",
+            {"name": "normalize_score", "version": "fv_exact"},
+        )
+    ]
+
+
+@pytest.mark.asyncio
+async def test_async_remote_drop_function_sends_exact_version():
+    with _mock_remote_function_catalog() as (host, state):
+        db = await lancedb.connect_async(
+            "db://dev",
+            api_key="fake",
+            host_override=host,
+            client_config={"retry_config": {"retries": 0}},
+        )
+        assert await db.drop_function("normalize_score", version="fv_exact") is True
+
+    assert state["requests"] == [
+        (
+            "/v1/functions/drop",
+            {"name": "normalize_score", "version": "fv_exact"},
+        )
+    ]
@@ -629,6 +629,17 @@ impl Connection {
        })
    }

+    pub fn drop_function(
+        self_: PyRef<'_, Self>,
+        name: String,
+        version: String,
+    ) -> PyResult<Bound<'_, PyAny>> {
+        let inner = self_.get_inner()?.clone();
+        future_into_py(self_.py(), async move {
+            inner.drop_function(name, version).await.infer_error()
+        })
+    }
+
    pub fn list_jobs(self_: PyRef<'_, Self>) -> PyResult<Bound<'_, PyAny>> {
        let inner = self_.get_inner()?.clone();
        future_into_py(self_.py(), async move {
@@ -523,6 +523,21 @@ impl Connection {
            .await
    }

+    /// Drop one exact immutable Function version from the remote catalog.
+    ///
+    /// Returns `true` when the server appended a Dropped transition and
+    /// `false` for an idempotent replay. Local databases return
+    /// [`Error::NotSupported`].
+    pub async fn drop_function(
+        &self,
+        name: impl AsRef<str>,
+        version: impl AsRef<str>,
+    ) -> Result<bool> {
+        self.internal
+            .drop_function(name.as_ref(), version.as_ref())
+            .await
+    }
+
    /// Rename a table in the database.
    ///
    /// This is only supported in LanceDB Cloud.
@@ -307,6 +307,10 @@ pub trait Database:
    ) -> Result<crate::function::FunctionVersion> {
        function_catalog_not_supported()
    }
+    /// Drop one exact immutable Function version from the remote catalog.
+    async fn drop_function(&self, _name: &str, _version: &str) -> Result<bool> {
+        function_catalog_not_supported()
+    }
    /// A [`crate::job::Job`] handle for a server-side job by id, suitable for
    /// waiting on or cancelling the job. The handle is constructed without a
    /// server round trip; an unknown id surfaces when the handle is used.
@@ -13,7 +13,7 @@ use lance::dataset::{ReadParams, WriteMode, builder::DatasetBuilder};
 use lance::io::{ObjectStore, ObjectStoreParams, WrappingObjectStore};
 use lance_datafusion::utils::StreamingWriteSource;
 use lance_file::version::LanceFileVersion;
-use lance_io::object_store::{StorageOptionsAccessor, StorageOptionsProvider};
+use lance_io::object_store::{ReadDirOptions, StorageOptionsAccessor, StorageOptionsProvider};
 use lance_table::io::commit::commit_handler_from_url;
 use object_store::local::LocalFileSystem;
 use snafu::ResultExt;
@@ -282,11 +282,14 @@ impl std::fmt::Display for ListingDatabase {

 const LANCE_EXTENSION: &str = "lance";

-/// The table a listed child directory holds, or `None` if it is not a table at all.
+/// The table a listed child of the database names, or `None` if the child is not a table.
 ///
 /// A table is the directory `<name>.lance`; a loose file or any other directory under the
 /// database prefix belongs to something else. `dir_suffix` is `.lance`, built once by the
 /// caller rather than per child.
+/// The table a listed child directory holds, or `None` if it is not a table at all.
+///
+/// Only directories are considered, so a loose object named like a table is not one.
 fn table_name(location: &object_store::path::Path, dir_suffix: &str) -> Option<String> {
    location
        .filename()?
@@ -294,75 +297,6 @@ fn table_name(location: &object_store::path::Path, dir_suffix: &str) -> Option<S
        .map(String::from)
        .filter(|name| !name.is_empty())
 }
-
-/// One page of the table directories under the database directory, in key order.
-struct DirPage {
-    /// The table directories the page holds, as the store lists them.
-    common_prefixes: Vec<object_store::path::Path>,
-    /// Resumes after this page, or `None` when the page reached the end of the level.
-    page_token: Option<String>,
-}
-
-/// Where a listed location sits inside the database directory — the space page tokens live
-/// in — or `None` if it is not a child of that directory at all. Matching both halves of the
-/// prefix drops a location that merely starts with the directory's name (`dbx/y` against
-/// `db/`) as well as the marker object some stores keep for the directory itself.
-fn relative_key<'a>(prefix: Option<&str>, location: &'a str) -> Option<&'a str> {
-    let relative = match prefix {
-        Some(prefix) => location.strip_prefix(prefix)?,
-        None => location,
-    };
-    (!relative.is_empty()).then_some(relative)
-}
-
-/// One page of the table directories under `base_path`, one directory level deep.
-///
-/// Lance 11 exposes no paginated directory listing, so the level is listed in full and paged
-/// locally: table directories go into key order (a directory's key keeps its trailing `/`,
-/// so a token is never a table name), the page is the smallest `limit` of them past
-/// `page_token`, and the token handed back is the key of the last directory the page took —
-/// so a page that took nothing ends the listing rather than resuming from a position no page
-/// ever reached. Only `<name>.lance/` directories enter the page: loose objects, other
-/// directories, and a bare `.lance/` never take a page slot or name a token, which keeps a
-/// page to exactly one listing of the level. Correct on every store, at the cost of that one
-/// full-level listing per page.
-async fn read_dir_page(
-    object_store: &ObjectStore,
-    base_path: &object_store::path::Path,
-    page_token: Option<String>,
-    limit: Option<usize>,
-) -> Result<DirPage> {
-    let listed = object_store.list_with_delimiter(Some(base_path)).await?;
-    let prefix = {
-        let base = base_path.as_ref();
-        (!base.is_empty()).then(|| format!("{base}/"))
-    };
-    let table_dir_suffix = format!(".{LANCE_EXTENSION}/");
-    let mut children: Vec<(String, object_store::path::Path)> = listed
-        .common_prefixes
-        .into_iter()
-        .filter_map(|location| {
-            let key = format!("{}/", relative_key(prefix.as_deref(), location.as_ref())?);
-            (key.len() > table_dir_suffix.len() && key.ends_with(&table_dir_suffix))
-                .then_some((key, location))
-        })
-        .collect();
-    children.sort_unstable_by(|(left, _), (right, _)| left.cmp(right));
-    if let Some(resume) = &page_token {
-        children.retain(|(key, _)| key > resume);
-    }
-    let total = children.len();
-    children.truncate(limit.unwrap_or(total).min(total));
-    let page_token = match children.last() {
-        Some((last, _)) if children.len() < total => Some(last.clone()),
-        _ => None,
-    };
-    Ok(DirPage {
-        common_prefixes: children.into_iter().map(|(_, location)| location).collect(),
-        page_token,
-    })
-}
-
 const ENGINE: &str = "engine";
 const MIRRORED_STORE: &str = "mirroredStore";

@@ -1048,7 +982,8 @@ impl Database for ListingDatabase {
        let mut tables = Vec::new();
        let mut page_token = request.page_token.filter(|token| !token.is_empty());

-        // A page of nothing: no table was handed over for a token to resume after.
+        // A page of nothing: the store rejects a limit of zero, and no table was handed over
+        // for a token to resume after.
        if limit == Some(0) {
            return Ok(ListTablesResponse {
                context: None,
@@ -1057,21 +992,35 @@ impl Database for ListingDatabase {
            });
        }

-        // The page holds only table directories, so one call — and the one full-level
-        // listing behind it — fills it.
-        let page = read_dir_page(
-            &self.object_store,
-            &self.base_path,
-            page_token.take(),
-            limit,
-        )
-        .await?;
-        page_token = page.page_token;
-        tables.extend(
-            page.common_prefixes
-                .iter()
-                .filter_map(|location| table_name(location, &dir_suffix)),
-        );
+        loop {
+            // Ask only for what the page still has room for, so a database holding more
+            // than one page costs one request per page rather than one per table.
+            let listing = self
+                .object_store
+                .read_dir_page(
+                    self.base_path.clone(),
+                    ReadDirOptions {
+                        page_token: page_token.take(),
+                        limit: limit.map(|limit| limit - tables.len()),
+                    },
+                )
+                .await?;
+            page_token = listing.page_token;
+            // Only child directories can be tables, and the store already separates them
+            // out, so the objects in the page are not looked at.
+            tables.extend(
+                listing
+                    .result
+                    .common_prefixes
+                    .iter()
+                    .filter_map(|location| table_name(location, &dir_suffix)),
+            );
+            // Children that are not tables leave the page short of the limit, so keep
+            // going until the page is full or the database runs out.
+            if page_token.is_none() || limit.is_none_or(|limit| tables.len() >= limit) {
+                break;
+            }
+        }

        Ok(ListTablesResponse {
            context: None,
@@ -1717,8 +1666,8 @@ mod tests {
    }

    /// Only directories named `<name>.lance` are tables; loose files and other directories
-    /// under the database prefix are not. They never take a page slot, so even a `limit`
-    /// smaller than the clutter ahead of the first table returns that table.
+    /// under the database prefix are not. A page spent on them is filled from the next one,
+    /// so a page holding only non-tables does not read as an empty database.
    #[tokio::test]
    async fn test_listing_ignores_non_table_children() {
        let (tempdir, db) = setup_database().await;
@@ -1737,37 +1686,6 @@ mod tests {
        assert_eq!(page.tables, vec!["real"]);
    }

-    /// The Lance 11 fallback pages locally over one full-level listing, so a bounded page
-    /// costs exactly one listing call — clutter ahead of the first table must not buy extra
-    /// round trips.
-    #[tokio::test]
-    async fn test_one_full_listing_per_public_page() {
-        use crate::io::object_store::io_tracking::IoStatsHolder;
-        use lance_io::object_store::WrappingObjectStore;
-
-        let (tempdir, mut db) = setup_database().await;
-        create_tables(&db, &["real"]).await;
-        std::fs::write(tempdir.path().join("aaa-loose.lance"), b"not a table").unwrap();
-        create_dir_all(tempdir.path().join("aaa-scratch")).unwrap();
-
-        let io_stats = IoStatsHolder::default();
-        let mut tracked_store = (*db.object_store).clone();
-        tracked_store.inner =
-            io_stats.wrap(&tracked_store.store_prefix, tracked_store.inner.clone());
-        db.object_store = Arc::new(tracked_store);
-
-        let page = db
-            .list_tables(ListTablesRequest {
-                limit: Some(1),
-                ..Default::default()
-            })
-            .await
-            .unwrap();
-
-        assert_eq!(page.tables, vec!["real"]);
-        assert_eq!(io_stats.incremental_stats().read_iops, 1);
-    }
-
    #[tokio::test]
    async fn listing_ignores_empty_table_name() {
        let (tempdir, db) = setup_database().await;
@@ -539,9 +539,7 @@ impl Database for LanceNamespaceDatabase {
        self.namespace
            .drop_table(drop_request)
            .await
-            .map_err(|e| Error::Runtime {
-                message: format!("Failed to drop table: {}", e),
-            })?;
+            .map_err(|e| map_namespace_lance_error(e, name))?;

        Ok(())
    }
@@ -1495,6 +1493,15 @@ mod tests {
            .expect("Failed to list tables");
        assert!(!table_names_after.contains(&"drop_test".to_string()));

+        let error = conn
+            .drop_table("drop_test", &["test_ns".into()])
+            .await
+            .expect_err("dropping a missing table should fail");
+        assert!(
+            matches!(error, Error::TableNotFound { ref name, .. } if name == "drop_test"),
+            "expected TableNotFound, got: {error:?}"
+        );
+
        // Verify: Cannot open dropped table
        let open_result = conn.open_table("drop_test").execute().await;
        assert!(open_result.is_err());
@@ -10,7 +10,7 @@ use lance::io::WrappingObjectStore;
 use object_store::{
    CopyOptions, Error, GetOptions, GetResult, ListResult, MultipartUpload, ObjectMeta,
    ObjectStore, ObjectStoreExt, PutMultipartOptions, PutOptions, PutPayload, PutResult, Result,
-    UploadPart, path::Path,
+    UploadPart, list::PaginatedListStore, path::Path,
 };

 use async_trait::async_trait;
@@ -187,6 +187,14 @@ impl WrappingObjectStore for MirroringObjectStoreWrapper {
            secondary: self.secondary.clone(),
        })
    }
+
+    fn wrap_paginated(
+        &self,
+        _store_prefix: &str,
+        original: Arc<dyn PaginatedListStore>,
+    ) -> Option<Arc<dyn PaginatedListStore>> {
+        Some(original)
+    }
 }

 // windows pathing can't be simply concatenated
@@ -12,7 +12,7 @@ use lance::io::WrappingObjectStore;
 use object_store::{
    CopyOptions, GetOptions, GetResult, ListResult, MultipartUpload, ObjectMeta, ObjectStore,
    PutMultipartOptions, PutOptions, PutPayload, PutResult, RenameOptions, Result as OSResult,
-    UploadPart, path::Path,
+    UploadPart, list::PaginatedListStore, path::Path,
 };

 #[derive(Debug, Default)]
@@ -57,6 +57,14 @@ impl WrappingObjectStore for IoStatsHolder {
            stats: self.0.clone(),
        })
    }
+
+    fn wrap_paginated(
+        &self,
+        _store_prefix: &str,
+        original: Arc<dyn PaginatedListStore>,
+    ) -> Option<Arc<dyn PaginatedListStore>> {
+        Some(original)
+    }
 }

 impl IoTrackingStore {
@@ -533,6 +533,11 @@ struct RemoteListJobsResponse {
    page_token: Option<String>,
 }

+#[derive(serde::Deserialize)]
+struct RemoteDropFunctionResponse {
+    dropped: bool,
+}
+
 /// Bound on `list_jobs` page walking; a warning is logged when the listing
 /// is truncated at this many pages.
 const MAX_LIST_JOBS_PAGES: usize = 100;
@@ -583,6 +588,20 @@ impl<S: HttpSend> Database for RemoteDatabase<S> {
        response.json().await.err_to_http(request_id)
    }

+    async fn drop_function(&self, name: &str, version: &str) -> Result<bool> {
+        let req = self
+            .client
+            .post("/v1/functions/drop")
+            .json(&serde_json::json!({
+                "name": name,
+                "version": version,
+            }));
+        let (request_id, response) = self.client.send(req).await?;
+        let response = self.client.check_response(&request_id, response).await?;
+        let response: RemoteDropFunctionResponse = response.json().await.err_to_http(request_id)?;
+        Ok(response.dropped)
+    }
+
    fn job(&self, job_id: &str) -> Result<crate::job::Job> {
        Ok(crate::job::Job::new(Box::new(super::job::RemoteJob::new(
            self.client.clone(),
@@ -2689,6 +2708,25 @@ mod tests {
        assert_eq!(version.version(), "fv_01K3EXACT");
    }

+    #[tokio::test]
+    async fn test_drop_function_sends_exact_version_and_decodes_replay() {
+        let conn = Connection::new_with_handler(|request| {
+            assert_eq!(request.method(), &reqwest::Method::POST);
+            assert_eq!(request.url().path(), "/v1/functions/drop");
+            let body: serde_json::Value =
+                serde_json::from_slice(request.body().unwrap().as_bytes().unwrap()).unwrap();
+            assert_eq!(
+                body,
+                serde_json::json!({"name": "embed", "version": "fv_01K3EXACT"})
+            );
+            http::Response::builder()
+                .status(200)
+                .body(r#"{"dropped":false}"#)
+                .unwrap()
+        });
+        assert!(!conn.drop_function("embed", "fv_01K3EXACT").await.unwrap());
+    }
+
    #[tokio::test]
    async fn test_conn_job_waits_to_done() {
        let polls = Arc::new(AtomicUsize::new(0));
@@ -4183,6 +4183,14 @@ mod tests {
                parent_list_calls: self.parent_list_calls.clone(),
            })
        }
+
+        fn wrap_paginated(
+            &self,
+            _store_prefix: &str,
+            _original: Arc<dyn object_store::list::PaginatedListStore>,
+        ) -> Option<Arc<dyn object_store::list::PaginatedListStore>> {
+            None
+        }
    }

    #[tokio::test]
@@ -4286,6 +4294,14 @@ mod tests {
            self.called.store(true, Ordering::Relaxed);
            original
        }
+
+        fn wrap_paginated(
+            &self,
+            _store_prefix: &str,
+            original: Arc<dyn object_store::list::PaginatedListStore>,
+        ) -> Option<Arc<dyn object_store::list::PaginatedListStore>> {
+            Some(original)
+        }
    }

    #[tokio::test]
@@ -589,16 +589,13 @@ fn canonical_input_arrow_type(field: &JsonArrowField) -> Result<String> {
        .and_then(|metadata| metadata.get(ARROW_EXT_NAME_KEY))
        .map(String::as_str)
        == Some(BLOB_V2_EXT_NAME);
-    if is_blob_v2 {
+    if is_blob_v2 || field.r#type.fields.is_some() {
        let arrow_field = lance_namespace::schema::convert_json_arrow_field(field)
            .map_err(|e| invalid_function(format!("invalid Function input field: {e}")))?;
-        if !has_supported_blob_v2_layout(&arrow_field) {
-            return Err(invalid_function(format!(
-                "Function input '{}' has an invalid Blob v2 storage layout",
-                arrow_field.name()
-            )));
+        validate_function_blob_nesting(&arrow_field, false)?;
+        if is_blob_v2 {
+            return Ok(FUNCTION_BLOB_V2_TYPE.to_string());
        }
-        return Ok(FUNCTION_BLOB_V2_TYPE.to_string());
    }
    if field.r#type.fields.is_none() && field.r#type.length.is_none() {
        Ok(field.r#type.r#type.clone())
@@ -617,6 +614,34 @@ fn has_supported_blob_v2_layout(field: &ArrowField) -> bool {
        )
 }

+fn validate_function_blob_nesting(field: &ArrowField, inside_collection: bool) -> Result<()> {
+    if field.is_blob_v2() {
+        if inside_collection {
+            return Err(invalid_function(format!(
+                "Function field '{}' nests Blob v2 under a collection, which Function signatures do not support",
+                field.name()
+            )));
+        }
+        if !has_supported_blob_v2_layout(field) {
+            return Err(invalid_function(format!(
+                "Function field '{}' has an invalid Blob v2 storage layout",
+                field.name()
+            )));
+        }
+        return Ok(());
+    }
+    match field.data_type() {
+        DataType::Struct(fields) => fields
+            .iter()
+            .try_for_each(|field| validate_function_blob_nesting(field, inside_collection)),
+        DataType::List(field)
+        | DataType::LargeList(field)
+        | DataType::FixedSizeList(field, _)
+        | DataType::Map(field, _) => validate_function_blob_nesting(field, true),
+        _ => Ok(()),
+    }
+}
+
 /// `fixed_size_list<item, size>` -> (`item`, `size`); the comma must sit outside
 /// any nested `<...>`.
 fn split_fixed_size_list(raw: &str) -> Option<(&str, i32)> {
@@ -697,21 +722,22 @@ fn parse_output_arrow_type(raw: &str) -> Result<JsonArrowDataType> {
 }

 fn function_output_field(name: &str, nullable: bool, raw: &str) -> Result<JsonArrowField> {
-    if raw == FUNCTION_BLOB_V2_TYPE {
-        return lance_namespace::schema::arrow_schema_to_json(&ArrowSchema::new(vec![
-            crate::blob(name, nullable),
-        ]))
+    let field = if raw == FUNCTION_BLOB_V2_TYPE {
+        lance_namespace::schema::arrow_schema_to_json(&ArrowSchema::new(vec![crate::blob(
+            name, nullable,
+        )]))
        .map_err(|e| invalid_function(format!("could not encode Blob v2 output field: {e}")))?
        .fields
        .into_iter()
        .next()
-        .ok_or_else(|| invalid_function("Blob v2 output field is missing"));
-    }
-    Ok(JsonArrowField::new(
-        name.to_string(),
-        nullable,
-        parse_output_arrow_type(raw)?,
-    ))
+        .ok_or_else(|| invalid_function("Blob v2 output field is missing"))?
+    } else {
+        JsonArrowField::new(name.to_string(), nullable, parse_output_arrow_type(raw)?)
+    };
+    let arrow_field = lance_namespace::schema::convert_json_arrow_field(&field)
+        .map_err(|e| invalid_function(format!("invalid Function output field: {e}")))?;
+    validate_function_blob_nesting(&arrow_field, false)?;
+    Ok(field)
 }

 fn function_output_field_matches(expected: &ArrowField, actual: &ArrowField) -> bool {
@@ -2719,6 +2745,28 @@ mod tests {
        .unwrap()
    }

+    fn exact_arrow_type(field: ArrowField) -> String {
+        let json =
+            lance_namespace::schema::arrow_schema_to_json(&ArrowSchema::new(vec![field])).unwrap();
+        serde_json::to_string(json.fields[0].r#type.as_ref()).unwrap()
+    }
+
+    fn single_input_application(path: &str) -> FunctionApplication {
+        FunctionApplication::from_json(
+            &serde_json::json!({
+                "function": {"name": "inspect", "version": "fv_nested_blob"},
+                "inputs": [{
+                    "parameter": "value",
+                    "kind": "column",
+                    "value": {"path": path}
+                }],
+                "output": {"kind": "scalar", "arrow_type": "int64", "nullable": false}
+            })
+            .to_string(),
+        )
+        .unwrap()
+    }
+
    fn binding_from_plan(plan: &FunctionDeclarationPlan) -> FunctionBinding {
        let inputs = plan
            .input_bindings
@@ -3158,6 +3206,128 @@ mod tests {
        assert_eq!(fields[1].data_type(), &DataType::Int32);
    }

+    #[test]
+    fn test_struct_blob_input_preserves_exact_schema_and_nullability() {
+        let payload = ArrowField::new(
+            "payload",
+            DataType::Struct(Fields::from(vec![
+                ArrowField::new("mime_type", DataType::Utf8, false),
+                ArrowField::new(
+                    "nested",
+                    DataType::Struct(Fields::from(vec![crate::blob("image", true)])),
+                    true,
+                ),
+            ])),
+            true,
+        );
+        let plan = plan_function_application(
+            &ArrowSchema::new(vec![payload]),
+            &single_input_application("payload"),
+            Some("size"),
+        )
+        .unwrap();
+
+        let declared: JsonArrowDataType =
+            serde_json::from_str(&plan.input_bindings[0].arrow_type).unwrap();
+        let DataType::Struct(fields) =
+            lance_namespace::schema::convert_json_arrow_type(&declared).unwrap()
+        else {
+            panic!("expected a struct Function input")
+        };
+        assert!(fields[1].is_nullable());
+        let DataType::Struct(nested) = fields[1].data_type() else {
+            panic!("expected a recursive struct Function input")
+        };
+        assert!(nested[0].is_blob_v2());
+        assert!(nested[0].is_nullable());
+
+        let exact = lance_namespace::schema::convert_json_arrow_schema(&plan.input_schema).unwrap();
+        let DataType::Struct(fields) = exact.field(0).data_type() else {
+            panic!("expected exact input schema to retain the struct")
+        };
+        let DataType::Struct(nested) = fields[1].data_type() else {
+            panic!("expected exact input schema to retain the nested struct")
+        };
+        assert!(nested[0].is_blob_v2());
+    }
+
+    #[test]
+    fn test_recursive_blob_result_plans_one_whole_named_struct_column() {
+        let details_type = exact_arrow_type(ArrowField::new(
+            "details",
+            DataType::Struct(Fields::from(vec![crate::blob("image", true)])),
+            false,
+        ));
+        let application = FunctionApplication::from_json(
+            &serde_json::json!({
+                "function": {"name": "inspect", "version": "fv_nested_blob"},
+                "inputs": [],
+                "output": {
+                    "kind": "named_struct",
+                    "fields": [
+                        {"name": "mime_type", "arrow_type": "utf8", "nullable": false},
+                        {"name": "details", "arrow_type": details_type, "nullable": false}
+                    ]
+                }
+            })
+            .to_string(),
+        )
+        .unwrap();
+        let plan = plan_function_application(&ArrowSchema::empty(), &application, Some("payload"))
+            .unwrap();
+
+        assert_eq!(plan.outputs.len(), 1);
+        assert_eq!(plan.outputs[0].result_field, WHOLE_RESULT_FIELD);
+        let schema =
+            lance_namespace::schema::convert_json_arrow_schema(&plan.output_schema).unwrap();
+        assert_eq!(schema.field(0).name(), "payload");
+        let DataType::Struct(fields) = schema.field(0).data_type() else {
+            panic!("whole named result must be one struct column")
+        };
+        assert_eq!(
+            fields.iter().map(|field| field.name()).collect::<Vec<_>>(),
+            ["mime_type", "details"]
+        );
+        let DataType::Struct(details) = fields[1].data_type() else {
+            panic!("expected recursive result struct")
+        };
+        assert!(details[0].is_blob_v2());
+        assert!(!fields.iter().any(|field| field.name() == "payload"));
+    }
+
+    #[test]
+    fn test_blob_children_under_collections_are_rejected() {
+        let collections = vec![
+            DataType::List(Arc::new(crate::blob("item", false))),
+            DataType::LargeList(Arc::new(crate::blob("item", false))),
+            DataType::FixedSizeList(Arc::new(crate::blob("item", false)), 2),
+            DataType::Map(
+                Arc::new(ArrowField::new(
+                    "entries",
+                    DataType::Struct(Fields::from(vec![
+                        ArrowField::new("key", DataType::Utf8, false),
+                        crate::blob("value", false),
+                    ])),
+                    false,
+                )),
+                false,
+            ),
+        ];
+        for data_type in collections {
+            let schema = ArrowSchema::new(vec![ArrowField::new("value", data_type, false)]);
+            let error = plan_function_application(
+                &schema,
+                &single_input_application("value"),
+                Some("size"),
+            )
+            .unwrap_err();
+            assert!(
+                error.to_string().contains("under a collection"),
+                "got: {error}"
+            );
+        }
+    }
+
    #[test]
    fn test_blob_whole_struct_binding_accepts_full_logical_layout() {
        let input = crate::blob("image", false);
@@ -300,7 +300,7 @@ async fn build_read_context(
    for shard_id in shard_ids {
        let manifest_store =
            ShardManifestStore::new(store.clone(), &base_path, shard_id, scan_batch_size);
-        if let Some(manifest) = manifest_store.read_latest().await? {
+        if let Some(manifest) = manifest_store.latest().await? {
            snapshots.push(snapshot_from_manifest(shard_id, &manifest, &exclude));
        }
    }
@@ -45,7 +45,11 @@ async fn local_function_catalog_operations_return_stable_not_supported() {
        .get_function("normalize_score", "fv_exact")
        .await
        .unwrap_err();
-    for error in [create_error, lookup_error] {
+    let drop_error = connection
+        .drop_function("normalize_score", "fv_exact")
+        .await
+        .unwrap_err();
+    for error in [create_error, lookup_error, drop_error] {
        assert!(matches!(
            error,
            Error::NotSupported { message }