xuyangzhong commented on a change in pull request #17547:
URL: https://github.com/apache/flink/pull/17547#discussion_r734385121
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File path:
flink-table/flink-table-planner/src/test/scala/org/apache/flink/table/planner/expressions/SqlExpressionTest.scala
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@@ -124,8 +124,8 @@ class SqlExpressionTest extends ExpressionTestBase {
testSqlApi("ROUND(-12.345, 2)", "-12.35")
testSqlApi("PI()", "3.141592653589793")
testSqlApi("E()", "2.718281828459045")
- testSqlApi("truncate(42.345)", "42")
- testSqlApi("truncate(cast(42.345 as decimal(5, 3)), 2)", "42.34")
+ testSqlApi("truncate(42.345)", "42.000")
+ testSqlApi("truncate(cast(42.345 as decimal(5, 3)), 2)", "42.340")
Review comment:
When the rule PROJECT_REDUCE_EXPRESSIONS is added into
ExpressionTestBase, the bug [FLINK-23614] happens. And the bug is only fixed in
1.15.
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