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Add support for XMLTABLE (#1817)

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Ophir LOJKINE 2025-04-23 18:03:06 +02:00 • committed by GitHub
parent 3ec80e187d
commit 945f8e0534
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38
tests/sqlparser_common.rs
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@ -11741,6 +11741,44 @@ fn test_group_by_grouping_sets() {
);
}
#[test]
fn test_xmltable() {
all_dialects()
.verified_only_select("SELECT * FROM XMLTABLE('/root' PASSING data COLUMNS element TEXT)");
// Minimal meaningful working example: returns a single row with a single column named y containing the value z
all_dialects().verified_only_select(
"SELECT y FROM XMLTABLE('/X' PASSING '<X><y>z</y></X>' COLUMNS y TEXT)",
);
// Test using subqueries
all_dialects().verified_only_select("SELECT y FROM XMLTABLE((SELECT '/X') PASSING (SELECT CAST('<X><y>z</y></X>' AS xml)) COLUMNS y TEXT PATH (SELECT 'y'))");
// NOT NULL
all_dialects().verified_only_select(
"SELECT y FROM XMLTABLE('/X' PASSING '<X></X>' COLUMNS y TEXT NOT NULL)",
);
all_dialects().verified_only_select("SELECT * FROM XMLTABLE('/root/row' PASSING xmldata COLUMNS id INT PATH '@id', name TEXT PATH 'name/text()', value FLOAT PATH 'value')");
all_dialects().verified_only_select("SELECT * FROM XMLTABLE('//ROWS/ROW' PASSING data COLUMNS row_num FOR ORDINALITY, id INT PATH '@id', name TEXT PATH 'NAME' DEFAULT 'unnamed')");
// Example from https://www.postgresql.org/docs/15/functions-xml.html#FUNCTIONS-XML-PROCESSING
all_dialects().verified_only_select(
"SELECT xmltable.* FROM xmldata, XMLTABLE('//ROWS/ROW' PASSING data COLUMNS id INT PATH '@id', ordinality FOR ORDINALITY, \"COUNTRY_NAME\" TEXT, country_id TEXT PATH 'COUNTRY_ID', size_sq_km FLOAT PATH 'SIZE[@unit = \"sq_km\"]', size_other TEXT PATH 'concat(SIZE[@unit!=\"sq_km\"], \" \", SIZE[@unit!=\"sq_km\"]/@unit)', premier_name TEXT PATH 'PREMIER_NAME' DEFAULT 'not specified')"
);
// Example from DB2 docs without explicit PASSING clause: https://www.ibm.com/docs/en/db2/12.1.0?topic=xquery-simple-column-name-passing-xmlexists-xmlquery-xmltable
all_dialects().verified_only_select(
"SELECT X.* FROM T1, XMLTABLE('$CUSTLIST/customers/customerinfo' COLUMNS \"Cid\" BIGINT PATH '@Cid', \"Info\" XML PATH 'document{.}', \"History\" XML PATH 'NULL') AS X"
);
// Example from PostgreSQL with XMLNAMESPACES
all_dialects().verified_only_select(
"SELECT xmltable.* FROM XMLTABLE(XMLNAMESPACES('http://example.com/myns' AS x, 'http://example.com/b' AS \"B\"), '/x:example/x:item' PASSING (SELECT data FROM xmldata) COLUMNS foo INT PATH '@foo', bar INT PATH '@B:bar')"
);
}
#[test]
fn test_match_recognize() {
use MatchRecognizePattern::*;