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fix(query): avoid lossy casts in partition pruning (#9600)

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* fix(query): keep lossy casts out of partition pruning

Signed-off-by: discord9 <55937128+discord9@users.noreply.github.com>

* test(query): align cast pruning expectations with conservative fallback

Signed-off-by: discord9 <55937128+discord9@users.noreply.github.com>

* test(query): record lossy cast partition pruning regression

Signed-off-by: discord9 <55937128+discord9@users.noreply.github.com>

* fix(query): retain safe pruning conjuncts beside unsupported casts

Signed-off-by: discord9 <55937128+discord9@users.noreply.github.com>

* test(query): refresh cast pruning plans after rebase

Signed-off-by: discord9 <55937128+discord9@users.noreply.github.com>

---------

Signed-off-by: discord9 <55937128+discord9@users.noreply.github.com>
This commit is contained in:
discord9
2026-10-26 09:53:32 +00:00
committed by GitHub
parent 91a59b82fb
commit df8f6848cc
3 changed files with 526 additions and 117 deletions
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tests/cases/distributed/optimizer/partition_pruning_cast.sql
+75
View File
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CREATE TABLE partition_pruning_cast_partitioned (
ts TIMESTAMP TIME INDEX,
k FLOAT PRIMARY KEY,
v BIGINT,
)
PARTITION ON COLUMNS (k) (
k < 1.25,
k >= 1.25
);
CREATE TABLE partition_pruning_cast_control (
ts TIMESTAMP TIME INDEX,
k FLOAT PRIMARY KEY,
v BIGINT,
);
INSERT INTO partition_pruning_cast_partitioned VALUES
(1000, 1.0, 10),
(1000, 1.5, 15),
(1000, 2.5, 25);
INSERT INTO partition_pruning_cast_control VALUES
(1000, 1.0, 10),
(1000, 1.5, 15),
(1000, 2.5, 25);
SELECT k, v, CAST(k AS BIGINT) AS cast_k
FROM partition_pruning_cast_partitioned ORDER BY k;
SELECT k, v, CAST(k AS BIGINT) AS cast_k
FROM partition_pruning_cast_control ORDER BY k;
-- SQLNESS REPLACE (peers.*) REDACTED
-- SQLNESS REPLACE (partitioning.*) REDACTED
EXPLAIN SELECT k, v, CAST(k AS BIGINT) AS cast_k
FROM partition_pruning_cast_partitioned
WHERE CAST(k AS BIGINT) = 1;
SELECT ts, k, v, CAST(k AS BIGINT) AS cast_k
FROM partition_pruning_cast_partitioned
WHERE CAST(k AS BIGINT) = 1
ORDER BY k;
SELECT ts, k, v, CAST(k AS BIGINT) AS cast_k
FROM partition_pruning_cast_control
WHERE CAST(k AS BIGINT) = 1
ORDER BY k;
-- SQLNESS REPLACE (-+) -
-- SQLNESS REPLACE (\s\s+) _
-- SQLNESS REPLACE (elapsed_compute.*) REDACTED
-- SQLNESS REPLACE (peers.*) REDACTED
-- SQLNESS REPLACE (metrics.*) REDACTED
-- SQLNESS REPLACE (partitioning.*) REDACTED
-- SQLNESS REPLACE region=\d+\(\d+,\s+\d+\) region=REDACTED
-- SQLNESS REPLACE \\?"(dyn_filters|time_range|file_summary|max_part_range)\\?":.* "$1":REDACTED
EXPLAIN ANALYZE SELECT k, v
FROM partition_pruning_cast_partitioned
WHERE k >= 1.25::FLOAT AND k < 2.5::FLOAT;
-- SQLNESS REPLACE (-+) -
-- SQLNESS REPLACE (\s\s+) _
-- SQLNESS REPLACE (elapsed_compute.*) REDACTED
-- SQLNESS REPLACE (peers.*) REDACTED
-- SQLNESS REPLACE (metrics.*) REDACTED
-- SQLNESS REPLACE (partitioning.*) REDACTED
-- SQLNESS REPLACE region=\d+\(\d+,\s+\d+\) region=REDACTED
-- SQLNESS REPLACE \\?"(dyn_filters|time_range|file_summary|max_part_range)\\?":.* "$1":REDACTED
EXPLAIN ANALYZE SELECT k, v
FROM partition_pruning_cast_partitioned
WHERE k >= 1.25::FLOAT AND k < 2.5::FLOAT AND CAST(v AS INT) IS NOT NULL;
SELECT k, v FROM partition_pruning_cast_partitioned
WHERE k >= 1.25::FLOAT AND k < 2.5::FLOAT AND CAST(v AS INT) IS NOT NULL;
SELECT k FROM partition_pruning_cast_partitioned
WHERE k = 1.0 OR CAST(k AS BIGINT) = 1 ORDER BY k;
DROP TABLE partition_pruning_cast_partitioned;
DROP TABLE partition_pruning_cast_control;