feat: add MSSQL table analyzer and integrate partition range generation for improved data migration

cmd/go_migrate/process.go

@@ -10,6 +10,7 @@ import (
 	"git.ksdemosapps.com/kylesoda/go-migrate/internal/app/config"
 	"git.ksdemosapps.com/kylesoda/go-migrate/internal/app/custom_errors"
 	"git.ksdemosapps.com/kylesoda/go-migrate/internal/app/etl"
+	"git.ksdemosapps.com/kylesoda/go-migrate/internal/app/etl/table_analyzers"
 	"git.ksdemosapps.com/kylesoda/go-migrate/internal/app/models"
 	"github.com/jackc/pgx/v5/pgxpool"
 	_ "github.com/microsoft/go-mssqldb"
@@ -20,6 +21,7 @@ func processMigrationJob(
 	ctx context.Context,
 	sourceDb *sql.DB,
 	targetDb *pgxpool.Pool,
+	tableAnalyzer etl.TableAnalyzer,
 	extractor etl.Extractor,
 	transformer etl.Transformer,
 	loader etl.Loader,
@@ -44,7 +46,13 @@ func processMigrationJob(
 	jobCtx, cancel := context.WithCancel(ctx)
 	defer cancel()
 
-	partitions, err := partitionGeneratorMssql(jobCtx, sourceDb, job.SourceTable, job.RowsPerPartition)
+	partitions, err := table_analyzers.PartitionRangeGenerator(
+		jobCtx,
+		tableAnalyzer,
+		job.SourceTable.TableInfo,
+		job.SourceTable.PrimaryKey,
+		job.RowsPerPartition,
+	)
 	if err != nil {
 		log.Error("Unexpected error calculating batch ranges: ", err)
 	}