warkanum
d7d1d99ebc
- derive the primary key sequence from the column's nextval() default instead of an unused identity_<table>_<pk> sequence - setval after table creation (full and diff paths), forward-only, MAX+1 with is_called=false - do not DROP DEFAULT on serial/bigserial columns without a model default
27 lines
771 B
Cheetah
27 lines
771 B
Cheetah
DO $$
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DECLARE
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m_cnt bigint;
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m_next bigint;
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BEGIN
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IF EXISTS (
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SELECT 1 FROM pg_class c
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INNER JOIN pg_namespace n ON n.oid = c.relnamespace
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WHERE c.relname = '{{.SequenceName}}'
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AND n.nspname = '{{.SchemaName}}'
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AND c.relkind = 'S'
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) THEN
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SELECT COALESCE(MAX({{quote_ident .ColumnName}}), 0) + 1
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FROM {{qual_table .SchemaName .TableName}}
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INTO m_cnt;
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SELECT CASE WHEN is_called THEN last_value + 1 ELSE last_value END
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FROM {{qual_table .SchemaName .SequenceName}}
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INTO m_next;
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-- Only move the sequence forward; never rewind one that is already past the data.
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IF m_cnt > m_next THEN
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PERFORM setval('{{qual_table_raw .SchemaName .SequenceName}}'::regclass, m_cnt, false);
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END IF;
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END IF;
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END;
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$$; |