bchapuis commented on code in PR #3668:
URL: https://github.com/apache/calcite/pull/3668#discussion_r2243848001
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core/src/main/java/org/apache/calcite/config/Lex.java:
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@@ -63,6 +63,13 @@ public enum Lex {
MYSQL_ANSI(Quoting.DOUBLE_QUOTE, Casing.UNCHANGED, Casing.UNCHANGED, false,
CharLiteralStyle.STANDARD),
+ /** Lexical policy similar to PostgreSQL. Quoted identifiers are preserved;
+ * Unquoted identifiers are converted to lower-case; after which, identifiers
+ * are matched case-sensitively.
+ */
+ POSTGRESQL(Quoting.DOUBLE_QUOTE, Casing.TO_LOWER, Casing.UNCHANGED, false,
Review Comment:
I added a test cases for this in `LexCaseSensitiveTest` and in
`LexEscapeTest`.
My integration tests are located here:
https://github.com/bchapuis/calcite-postgis-tests
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