NobiGo commented on code in PR #4151:
URL: https://github.com/apache/calcite/pull/4151#discussion_r1920939215
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core/src/test/java/org/apache/calcite/rel/rel2sql/RelToSqlConverterTest.java:
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@@ -7960,6 +7960,30 @@ private void checkLiteral2(String expression, String
expected) {
.withBigQuery().ok(expectedBiqquery);
}
+ /** Test case for
+ * <a
href="https://issues.apache.org/jira/browse/CALCITE-6756";>[CALCITE-6756]
+ * Preserving CAST of STRING operand in binary comparison for
PostgreSQL</a>. */
+ @Test void testImplicitTypeCoercionPostgreSQL() {
+ final String query = "select \"employee_id\" "
+ + "from \"foodmart\".\"employee\" "
+ + "where 10 = cast(\"full_name\" as int) and "
+ + " \"first_name\" > cast(10 as varchar) and "
+ + "\"birth_date\" = cast('1914-02-02' as date) or "
Review Comment:
This expression is illegal in PostgreSQL. But after the dialect is
converted, it can work well.
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