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fix: Update mssql extractor to utilize proper case for case sensitive MSSQL databases #2234

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fix: Update mssql extractor to utilize proper case for case sensitive MSSQL databases #2234

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48015ea
Update mssql_metadata_extractor.py
Feb 26, 2024
a70dd7b
minor change to add signed off requirement
ardcarmvk Feb 27, 2024
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34 changes: 17 additions & 17 deletions databuilder/databuilder/extractor/mssql_metadata_extractor.py
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Original file line number Diff line number Diff line change
Expand Up @@ -28,32 +28,32 @@ class MSSQLMetadataExtractor(Extractor):
# SELECT statement from MS SQL to extract table and column metadata
SQL_STATEMENT = """
SELECT DISTINCT
{cluster_source} AS cluster,
{cluster_source} AS [cluster],
TBL.TABLE_SCHEMA AS [schema_name],
TBL.TABLE_NAME AS [name],
CAST(PROP.VALUE AS NVARCHAR(MAX)) AS [description],
CAST(PROP.value AS NVARCHAR(MAX)) AS [description],
COL.COLUMN_NAME AS [col_name],
COL.DATA_TYPE AS [col_type],
CAST(PROP_COL.VALUE AS NVARCHAR(MAX)) AS [col_description],
COL.ORDINAL_POSITION AS col_sort_order
CAST(PROP_COL.value AS NVARCHAR(MAX)) AS [col_description],
COL.ORDINAL_POSITION AS [col_sort_order]
FROM INFORMATION_SCHEMA.TABLES TBL
INNER JOIN INFORMATION_SCHEMA.COLUMNS COL
ON (COL.TABLE_NAME = TBL.TABLE_NAME
AND COL.TABLE_SCHEMA = TBL.TABLE_SCHEMA )
LEFT JOIN SYS.EXTENDED_PROPERTIES PROP
ON (PROP.MAJOR_ID = OBJECT_ID(TBL.TABLE_SCHEMA + '.' + TBL.TABLE_NAME)
AND PROP.MINOR_ID = 0
AND PROP.NAME = 'MS_Description')
LEFT JOIN SYS.EXTENDED_PROPERTIES PROP_COL
ON (PROP_COL.MAJOR_ID = OBJECT_ID(TBL.TABLE_SCHEMA + '.' + TBL.TABLE_NAME)
AND PROP_COL.MINOR_ID = COL.ORDINAL_POSITION
AND PROP_COL.NAME = 'MS_Description')
WHERE TBL.TABLE_TYPE = 'base table' {where_clause_suffix}
LEFT JOIN sys.extended_properties PROP
ON (PROP.major_id = OBJECT_ID(TBL.TABLE_SCHEMA + '.' + TBL.TABLE_NAME)
AND PROP.minor_id = 0
AND PROP.name = 'MS_Description')
LEFT JOIN sys.extended_properties PROP_COL
ON (PROP_COL.major_id = OBJECT_ID(TBL.TABLE_SCHEMA + '.' + TBL.TABLE_NAME)
AND PROP_COL.minor_id = COL.ORDINAL_POSITION
AND PROP_COL.name = 'MS_Description')
WHERE TBL.TABLE_TYPE = 'BASE TABLE' {where_clause_suffix}
ORDER BY
CLUSTER,
SCHEMA_NAME,
NAME,
COL_SORT_ORDER
cluster,
schema_name,
name,
col_sort_order
;
"""

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