Postgres: Support SUBSTRING SIMILAR/ESCAPE syntax and reversed FOR/FROM order - #2494
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BenSatori wants to merge 2 commits into
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Postgres: Support SUBSTRING SIMILAR/ESCAPE syntax and reversed FOR/FROM order#2494BenSatori wants to merge 2 commits into
BenSatori wants to merge 2 commits into
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Fixes parsing of two legal Postgres
SUBSTRINGforms:SUBSTRING('hello world' FOR 5 FROM 1)(FORbeforeFROM)SUBSTRING('hello world' SIMILAR '%#"o w#"%' ESCAPE '#')See https://www.postgresql.org/docs/current/functions-string.html
Both previously failed with a parser error. Adds a
similarflag toExpr::Substringto track theSIMILAR ... ESCAPEdisplay form, and allowsFORto be parsed beforeFROM(normalized toFROM ... FORon output).Generated with AI assistance (GitHub Copilot).