codeant-ai-for-open-source[bot] commented on code in PR #43236:
URL: https://github.com/apache/superset/pull/43236#discussion_r3885481652
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superset/db_engine_specs/db2.py:
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@@ -95,21 +95,14 @@ class Db2EngineSpec(BaseEngineSpec):
_time_grain_expressions = {
None: "{col}",
- TimeGrain.SECOND: "CAST({col} as TIMESTAMP) - MICROSECOND({col})
MICROSECONDS",
- TimeGrain.MINUTE: "CAST({col} as TIMESTAMP)"
- " - SECOND({col}) SECONDS"
- " - MICROSECOND({col}) MICROSECONDS",
- TimeGrain.HOUR: "CAST({col} as TIMESTAMP)"
- " - MINUTE({col}) MINUTES"
- " - SECOND({col}) SECONDS"
- " - MICROSECOND({col}) MICROSECONDS ",
- TimeGrain.DAY: "DATE({col})",
- TimeGrain.WEEK: "{col} - (DAYOFWEEK({col})) DAYS",
- TimeGrain.MONTH: "{col} - (DAY({col})-1) DAYS",
- TimeGrain.QUARTER: "{col} - (DAY({col})-1) DAYS"
- " - (MONTH({col})-1) MONTHS"
- " + ((QUARTER({col})-1) * 3) MONTHS",
- TimeGrain.YEAR: "{col} - (DAY({col})-1) DAYS - (MONTH({col})-1)
MONTHS",
+ TimeGrain.SECOND: "DATE_TRUNC('SECOND', {col})",
+ TimeGrain.MINUTE: "DATE_TRUNC('MINUTE', {col})",
+ TimeGrain.HOUR: "DATE_TRUNC('HOUR', {col})",
+ TimeGrain.DAY: "DATE_TRUNC('DAY', {col})",
+ TimeGrain.WEEK: "DATE_TRUNC('WEEK', {col})",
+ TimeGrain.MONTH: "DATE_TRUNC('MONTH', {col})",
+ TimeGrain.QUARTER: "DATE_TRUNC('QUARTER', {col})",
+ TimeGrain.YEAR: "DATE_TRUNC('YEAR', {col})",
Review Comment:
✅ **Customized review instruction saved!**
**Instruction:**
> Do not flag DATE_TRUNC(part, expr) mappings as incompatible for IBM Db2;
Db2 11.1 and later support the native function, and version-specific SQL
branching is not required.
**Applied to:**
- `superset/db_engine_specs/db2.py`
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