fix(sqlserver): preserve IDENTITY columns when copying table (#1691)#1918
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fix(sqlserver): preserve IDENTITY columns when copying table (#1691)#1918HandSonic wants to merge 1 commit into
HandSonic wants to merge 1 commit into
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…nd#1691) Use Chat2DBContext.getDbMetaData().tableDDL() to generate proper CREATE TABLE DDL that preserves IDENTITY, computed columns, constraints, indexes, etc. For data copying, wrap INSERT INTO...SELECT with SET IDENTITY_INSERT ON/OFF to allow explicit values in identity columns. The previous SELECT * INTO approach silently dropped IDENTITY properties.
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Use tableDDL() to generate proper CREATE TABLE DDL that preserves IDENTITY, computed columns, constraints, and indexes.
For data copying, wrap INSERT INTO...SELECT with SET IDENTITY_INSERT ON/OFF to allow explicit values in identity columns.
The previous SELECT * INTO approach silently dropped IDENTITY properties.
Fixes #1691