for sequences, account for nulls and zero #112
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AnatolyUss
reviewed
Sep 1, 2023
| @@ -67,7 +67,10 @@ export const setSequenceValue = async ( | |||
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| const seqName: string = getSequenceName(tableName, columnName); | |||
| const sql = `SELECT SETVAL(\'"${conversion._schema}"."${seqName}"\', | |||
| (SELECT MAX("${columnName}") FROM "${conversion._schema}"."${tableName}"));`; | |||
| GREATEST( | |||
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@jhere1
In general - good catch!
The question is, shouldn't we set sequence value to zero if table is empty?
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Yeah, the nextval would have been 2. Setting sequence value to 0 would involve changing the sequence definition min value. Take a look at my latest commit. Think this is cleaner. it does what we want (have nextval be 1) by saying the value of 1 is not used yet.
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set sequence value to 1 if max(columnName) returns null or less than 1.