danny0405 commented on a change in pull request #1544: [CALCITE-3415] Supports
REGEXP_SUBSTR function
URL: https://github.com/apache/calcite/pull/1544#discussion_r340456943
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File path: core/src/main/java/org/apache/calcite/sql/type/OperandTypes.java
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@@ -408,6 +408,11 @@ private boolean hasFractionalPart(BigDecimal bd) {
family(SqlTypeFamily.STRING, SqlTypeFamily.STRING,
SqlTypeFamily.INTEGER, SqlTypeFamily.INTEGER);
+ public static final SqlSingleOperandTypeChecker
STRING_STRING_INTEGER_INTEGER_STRING =
+ family(SqlTypeFamily.STRING, SqlTypeFamily.STRING,
+ SqlTypeFamily.INTEGER, SqlTypeFamily.INTEGER,
Review comment:
This is not that necessary, you can new a fresh one directly where you need
this.
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