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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="API documentation for the Rust `json_expr_planner` mod in crate `query`."><title>query::datafusion::json_expr_planner - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-1ed95124.css"><meta name="rustdoc-vars" 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display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">Module json_expr_planner</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../../query/index.html">query</a><span class="version">1.4.0-alpha.0</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Module json_<wbr>expr_<wbr>planner</a></h2><h3><a href="#macros">Module Items</a></h3><ul class="block"><li><a href="#macros" title="Macros">Macros</a></li><li><a href="#structs" title="Structs">Structs</a></li><li><a href="#enums" title="Enums">Enums</a></li><li><a href="#functions" title="Functions">Functions</a></li></ul></section><div id="rustdoc-modnav"><h2><a href="../index.html">In query::<wbr>datafusion</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content" tabindex="-1"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../../index.html">query</a>::<wbr><a href="../index.html">datafusion</a></div><h1>Module <span>json_<wbr>expr_<wbr>planner</span> <button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../../src/query/datafusion/json_expr_planner.rs.html#15-1001">Source</a> </span></div><h2 id="macros" class="section-header">Macros<a href="#macros" class="anchor">§</a></h2><dl class="item-table"><dt><a class="macro" href="macro.is_typed_json_get_func.html" title="macro query::datafusion::json_expr_planner::is_typed_json_get_func">is_<wbr>typed_<wbr>json_<wbr>get_<wbr>func</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="macro" href="macro.is_untyped_json_get_func.html" title="macro query::datafusion::json_expr_planner::is_untyped_json_get_func">is_<wbr>untyped_<wbr>json_<wbr>get_<wbr>func</a><span title="Restricted Visibility"> 🔒</span> </dt></dl><h2 id="structs" class="section-header">Structs<a href="#structs" class="anchor">§</a></h2><dl class="item-table"><dt><a class="struct" href="struct.JsonExprPlanner.html" title="struct query::datafusion::json_expr_planner::JsonExprPlanner">Json<wbr>Expr<wbr>Planner</a><span title="Restricted Visibility"> 🔒</span> </dt><dd>Rewrites JSON-aware SQL expressions into DataFusion expressions.</dd></dl><h2 id="enums" class="section-header">Enums<a href="#enums" class="anchor">§</a></h2><dl class="item-table"><dt><a class="enum" href="enum.JsonGetTypeResolution.html" title="enum query::datafusion::json_expr_planner::JsonGetTypeResolution">Json<wbr>GetType<wbr>Resolution</a><span title="Restricted Visibility"> 🔒</span> </dt></dl><h2 id="functions" class="section-header">Functions<a href="#functions" class="anchor">§</a></h2><dl class="item-table"><dt><a class="fn" href="fn.apply_json_type_hint.html" title="fn query::datafusion::json_expr_planner::apply_json_type_hint">apply_<wbr>json_<wbr>type_<wbr>hint</a><span title="Restricted Visibility"> 🔒</span> </dt><dd>Sets the native read type for an exact hinted object path. Both SQL syntaxes use this before
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an enclosing expression can infer a type or push down a cast.</dd><dt><a class="fn" href="fn.extract_json_get_type.html" title="fn query::datafusion::json_expr_planner::extract_json_get_type">extract_<wbr>json_<wbr>get_<wbr>type</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="fn" href="fn.extract_untyped_json_get.html" title="fn query::datafusion::json_expr_planner::extract_untyped_json_get">extract_<wbr>untyped_<wbr>json_<wbr>get</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="fn" href="fn.fallback_json_get_type.html" title="fn query::datafusion::json_expr_planner::fallback_json_get_type">fallback_<wbr>json_<wbr>get_<wbr>type</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="fn" href="fn.function_arg_field.html" title="fn query::datafusion::json_expr_planner::function_arg_field">function_<wbr>arg_<wbr>field</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="fn" href="fn.infer_json_get_types.html" title="fn query::datafusion::json_expr_planner::infer_json_get_types">infer_<wbr>json_<wbr>get_<wbr>types</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="fn" href="fn.is_untyped_json_get.html" title="fn query::datafusion::json_expr_planner::is_untyped_json_get">is_<wbr>untyped_<wbr>json_<wbr>get</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="fn" href="fn.json_get_object_path.html" title="fn query::datafusion::json_expr_planner::json_get_object_path">json_<wbr>get_<wbr>object_<wbr>path</a><span title="Restricted Visibility"> 🔒</span> </dt><dd>Resolves <code>json_get</code>’s second argument expression (the path) to object field names for type hint
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lookup. For example, the string literal <code>'$.user.age'</code> resolves to <code>["user", "age"]</code>.</dd><dt><a class="fn" href="fn.json_get_output_type.html" title="fn query::datafusion::json_expr_planner::json_get_output_type">json_<wbr>get_<wbr>output_<wbr>type</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="fn" href="fn.json_path_field.html" title="fn query::datafusion::json_expr_planner::json_path_field">json_<wbr>path_<wbr>field</a><span title="Restricted Visibility"> 🔒</span> </dt><dd>Quotes field names containing JSONPath punctuation, preserving literal keys.</dd><dt><a class="fn" href="fn.json_type_hint.html" title="fn query::datafusion::json_expr_planner::json_type_hint">json_<wbr>type_<wbr>hint</a><span title="Restricted Visibility"> 🔒</span> </dt><dd>Returns the configured native type for an exact JSON2 object path.</dd><dt><a class="fn" href="fn.parse_sql_op.html" title="fn query::datafusion::json_expr_planner::parse_sql_op">parse_<wbr>sql_<wbr>op</a><span title="Restricted Visibility"> 🔒</span> </dt><dt><a class="fn" href="fn.push_function_arg_types.html" title="fn query::datafusion::json_expr_planner::push_function_arg_types">push_<wbr>function_<wbr>arg_<wbr>types</a><span title="Restricted Visibility"> 🔒</span> </dt><dd>Infers static output types for untyped <code>json_get</code> arguments from a function signature.</dd><dt><a class="fn" href="fn.push_json_get_type_arg.html" title="fn query::datafusion::json_expr_planner::push_json_get_type_arg">push_<wbr>json_<wbr>get_<wbr>type_<wbr>arg</a><span title="Restricted Visibility"> 🔒</span> </dt></dl></section></div></main></body></html> |