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[CALCITE-7301] Support unparse special syntax when operator is LAMBDA/MERGE/UNPIVOT

6

dssysolyatin

[CALCITE-7427] Add connection config to enable RuleMatchVisualizer

5

[CALCITE-7247](https://issues.apache.org/jira/browse/CALCITE-7247)

tjbanghart

[CALCITE-7122] Eliminate nested calls for idempotent unary functions UPPER/LOWER/ABS/INITCAP/CEIL/FLOOR

24

jira: https://issues.apache.org/jira/browse/CALCITE-7122

xuzifu666

[CALCITE-7267] CHAR_LENGTH function is not support in Oracle

2

jira: https://issues.apache.org/jira/browse/CALCITE-7267

xuzifu666

[CALCITE-7311] Support the syntax ROW(*) to create a nested ROW type with all columns

3

See [CALCITE-7311](https://issues.apache.org/jira/browse/CALCITE-7311)

xiedeyantu

[CALCITE-7270] Add support for a DIVIDE_0_NULL operation

1

https://issues.apache.org/jira/browse/CALCITE-7270

mihaibudiu

[CALCITE-7304] Floor/Ceil can not simplify with WEEK TimeUnit

1

jira：https://issues.apache.org/jira/browse/CALCITE-7304

xuzifu666

[CALCITE-0000] Improve CI cache

4

asolimando

[CALCITE-7246] UNNEST in Spark should convert to EXPLODE/POSEXPLODE

3

See: [[CALCITE-6469](https://issues.apache.org/jira/browse/CALCITE-6469)]

xiaochen-zhou

[CALCITE-6947] Support LogicalSnapshot in RelShuttle

19

jira：https://issues.apache.org/jira/browse/CALCITE-6947

xuzifu666