kylesoda/go-migrate-db
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feat: add extract query builders for both dialects

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Add QueryFromObject helpers to build select queries from a table schema, with limits and geometry support.
This commit is contained in:
Kylesoda
2026-04-09 16:00:00 -05:00
parent c5987fa7f8
commit 4f181269a4
5 changed files with 11 additions and 236 deletions
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6
cmd/go_migrate/build-extract-query.go
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@@ -17,7 +17,7 @@ func buildExtractQueryMssql(job MigrationJob, columns []ColumnType) string {
sbColumns.WriteString("]")
if col.unifiedType == "GEOMETRY" {
sbColumns.WriteString(".STAsBinary() AS [")
sbColumns.WriteString(".STAsWKB() AS [")
sbColumns.WriteString(col.name)
sbColumns.WriteString("]")
}
@@ -28,7 +28,7 @@ func buildExtractQueryMssql(job MigrationJob, columns []ColumnType) string {
}
}
return fmt.Sprintf(`SELECT %s FROM [%s].[%s] ORDER BY [%s] ASC`, sbColumns.String(), job.Schema, job.Table, job.PrimaryKey)
return fmt.Sprintf(`SELECT %s FROM [%s].[%s] WITH (NOLOCK)`, sbColumns.String(), job.Schema, job.Table)
}
func buildExtractQueryPostgres(job MigrationJob, columns []ColumnType) string {
@@ -56,5 +56,5 @@ func buildExtractQueryPostgres(job MigrationJob, columns []ColumnType) string {
}
}
return fmt.Sprintf(`SELECT %s FROM "%s"."%s" ORDER BY "%s" ASC`, sbColumns.String(), job.Schema, job.Table, job.PrimaryKey)
return fmt.Sprintf(`SELECT %s FROM "%s"."%s"`, sbColumns.String(), job.Schema, job.Table)
}