Standing up guardrails for Invalid Cols

clients/shared/append.go

@@ -1,7 +1,7 @@
 package shared
 
 import (
-	"log/slog"
+	"fmt"
 
 	"github.com/artie-labs/transfer/lib/config/constants"
 	"github.com/artie-labs/transfer/lib/destination"
@@ -20,7 +20,7 @@ func Append(dwh destination.DataWarehouse, tableData *optimization.TableData, op
 	tableID := dwh.IdentifierFor(tableData.TopicConfig(), tableData.Name())
 	tableConfig, err := dwh.GetTableConfig(tableData)
 	if err != nil {
-		return err
+		return fmt.Errorf("failed to get table config: %w", err)
 	}
 
 	// We don't care about srcKeysMissing because we don't drop columns when we append.
@@ -40,13 +40,13 @@ func Append(dwh destination.DataWarehouse, tableData *optimization.TableData, op
 	}
 
 	// Keys that exist in CDC stream, but not in DWH
-	err = createAlterTableArgs.AlterTable(targetKeysMissing...)
-	if err != nil {
-		slog.Warn("Failed to apply alter table", slog.Any("err", err))
-		return err
+	if err = createAlterTableArgs.AlterTable(targetKeysMissing...); err != nil {
+		return fmt.Errorf("failed to alter table: %w", err)
 	}
 
-	tableData.MergeColumnsFromDestination(tableConfig.Columns().GetColumns()...)
+	if err = tableData.MergeColumnsFromDestination(tableConfig.Columns().GetColumns()...); err != nil {
+		return fmt.Errorf("failed to merge columns from destination: %w", err)
+	}
 
 	additionalSettings := types.AdditionalSettings{
 		AdditionalCopyClause: opts.AdditionalCopyClause,

clients/shared/merge.go

@@ -69,7 +69,10 @@ func Merge(dwh destination.DataWarehouse, tableData *optimization.TableData, cfg
 	}
 
 	tableConfig.AuditColumnsToDelete(srcKeysMissing)
-	tableData.MergeColumnsFromDestination(tableConfig.Columns().GetColumns()...)
+	if err = tableData.MergeColumnsFromDestination(tableConfig.Columns().GetColumns()...); err != nil {
+		return fmt.Errorf("failed to merge columns from destination: %w", err)
+	}
+
 	temporaryTableID := TempTableID(dwh.IdentifierFor(tableData.TopicConfig(), tableData.Name()), tableData.TempTableSuffix())
 	temporaryTableName := temporaryTableID.FullyQualifiedName()
 	if err = dwh.PrepareTemporaryTable(tableData, tableConfig, temporaryTableID, types.AdditionalSettings{}, true); err != nil {

lib/optimization/event_update_test.go

@@ -11,139 +11,160 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
+const strCol = "string"
+
 func TestTableData_UpdateInMemoryColumnsFromDestination(t *testing.T) {
-	const strCol = "string"
+	{
+		tableDataCols := &columns.Columns{}
+		tableData := &TableData{
+			inMemoryColumns: tableDataCols,
+		}
 
-	tableDataCols := &columns.Columns{}
-	tableDataCols.AddColumn(columns.NewColumn("name", typing.String))
-	tableDataCols.AddColumn(columns.NewColumn("bool_backfill", typing.Boolean))
-	tableDataCols.AddColumn(columns.NewColumn("prev_invalid", typing.Invalid))
-	tableDataCols.AddColumn(columns.NewColumn("numeric_test", typing.EDecimal))
+		tableData.AddInMemoryCol(columns.NewColumn("foo", typing.String))
+		invalidCol := columns.NewColumn("foo", typing.Invalid)
+		assert.ErrorContains(t, tableData.MergeColumnsFromDestination(invalidCol), `column "foo" is invalid`)
+	}
+	{
+		tableDataCols := &columns.Columns{}
+		tableData := &TableData{
+			inMemoryColumns: tableDataCols,
+		}
 
-	// Casting these as STRING so tableColumn via this f(x) will set it correctly.
-	tableDataCols.AddColumn(columns.NewColumn("ext_date", typing.String))
-	tableDataCols.AddColumn(columns.NewColumn("ext_time", typing.String))
-	tableDataCols.AddColumn(columns.NewColumn("ext_datetime", typing.String))
-	tableDataCols.AddColumn(columns.NewColumn("ext_dec", typing.String))
+		tableDataCols.AddColumn(columns.NewColumn("name", typing.String))
+		tableDataCols.AddColumn(columns.NewColumn("bool_backfill", typing.Boolean))
+		tableDataCols.AddColumn(columns.NewColumn("prev_invalid", typing.Invalid))
+		tableDataCols.AddColumn(columns.NewColumn("numeric_test", typing.EDecimal))
 
-	extDecimalType := typing.EDecimal
-	extDecimalType.ExtendedDecimalDetails = decimal.NewDecimal(ptr.ToInt(22), 2, nil)
-	tableDataCols.AddColumn(columns.NewColumn("ext_dec_filled", extDecimalType))
+		// Casting these as STRING so tableColumn via this f(x) will set it correctly.
+		tableDataCols.AddColumn(columns.NewColumn("ext_date", typing.String))
+		tableDataCols.AddColumn(columns.NewColumn("ext_time", typing.String))
+		tableDataCols.AddColumn(columns.NewColumn("ext_datetime", typing.String))
+		tableDataCols.AddColumn(columns.NewColumn("ext_dec", typing.String))
 
-	tableDataCols.AddColumn(columns.NewColumn(strCol, typing.String))
+		extDecimalType := typing.EDecimal
+		extDecimalType.ExtendedDecimalDetails = decimal.NewDecimal(ptr.ToInt(22), 2, nil)
+		tableDataCols.AddColumn(columns.NewColumn("ext_dec_filled", extDecimalType))
 
-	tableData := &TableData{
-		inMemoryColumns: tableDataCols,
-	}
+		tableDataCols.AddColumn(columns.NewColumn(strCol, typing.String))
 
-	nonExistentTableCols := []string{"dusty", "the", "mini", "aussie"}
-	var nonExistentCols []columns.Column
-	for _, nonExistentTableCol := range nonExistentTableCols {
-		nonExistentCols = append(nonExistentCols, columns.NewColumn(nonExistentTableCol, typing.String))
-	}
+		nonExistentTableCols := []string{"dusty", "the", "mini", "aussie"}
+		var nonExistentCols []columns.Column
+		for _, nonExistentTableCol := range nonExistentTableCols {
+			nonExistentCols = append(nonExistentCols, columns.NewColumn(nonExistentTableCol, typing.String))
+		}
 
-	// Testing to make sure we don't copy over non-existent columns
-	tableData.MergeColumnsFromDestination(nonExistentCols...)
-	for _, nonExistentTableCol := range nonExistentTableCols {
-		_, isOk := tableData.inMemoryColumns.GetColumn(nonExistentTableCol)
-		assert.False(t, isOk, nonExistentTableCol)
-	}
+		// Testing to make sure we don't copy over non-existent columns
+		assert.NoError(t, tableData.MergeColumnsFromDestination(nonExistentCols...))
+		for _, nonExistentTableCol := range nonExistentTableCols {
+			_, isOk := tableData.inMemoryColumns.GetColumn(nonExistentTableCol)
+			assert.False(t, isOk, nonExistentTableCol)
+		}
 
-	// Making sure it's still numeric
-	tableData.MergeColumnsFromDestination(columns.NewColumn("numeric_test", typing.Integer))
-	numericCol, isOk := tableData.inMemoryColumns.GetColumn("numeric_test")
-	assert.True(t, isOk)
-	assert.Equal(t, typing.EDecimal.Kind, numericCol.KindDetails.Kind, "numeric_test")
-
-	// Testing to make sure we're copying the kindDetails over.
-	tableData.MergeColumnsFromDestination(columns.NewColumn("prev_invalid", typing.String))
-	prevInvalidCol, isOk := tableData.inMemoryColumns.GetColumn("prev_invalid")
-	assert.True(t, isOk)
-	assert.Equal(t, typing.String, prevInvalidCol.KindDetails)
-
-	// Testing backfill
-	for _, inMemoryCol := range tableData.inMemoryColumns.GetColumns() {
-		assert.False(t, inMemoryCol.Backfilled(), inMemoryCol.RawName())
-	}
-	backfilledCol := columns.NewColumn("bool_backfill", typing.Boolean)
-	backfilledCol.SetBackfilled(true)
-	tableData.MergeColumnsFromDestination(backfilledCol)
-	for _, inMemoryCol := range tableData.inMemoryColumns.GetColumns() {
-		if inMemoryCol.RawName() == backfilledCol.RawName() {
-			assert.True(t, inMemoryCol.Backfilled(), inMemoryCol.RawName())
-		} else {
+		// Making sure it's still numeric
+		assert.NoError(t, tableData.MergeColumnsFromDestination(columns.NewColumn("numeric_test", typing.Integer)))
+		numericCol, isOk := tableData.inMemoryColumns.GetColumn("numeric_test")
+		assert.True(t, isOk)
+		assert.Equal(t, typing.EDecimal.Kind, numericCol.KindDetails.Kind, "numeric_test")
+
+		// Testing to make sure we're copying the kindDetails over.
+		assert.NoError(t, tableData.MergeColumnsFromDestination(columns.NewColumn("prev_invalid", typing.String)))
+		prevInvalidCol, isOk := tableData.inMemoryColumns.GetColumn("prev_invalid")
+		assert.True(t, isOk)
+		assert.Equal(t, typing.String, prevInvalidCol.KindDetails)
+
+		// Testing backfill
+		for _, inMemoryCol := range tableData.inMemoryColumns.GetColumns() {
 			assert.False(t, inMemoryCol.Backfilled(), inMemoryCol.RawName())
 		}
-	}
+		backfilledCol := columns.NewColumn("bool_backfill", typing.Boolean)
+		backfilledCol.SetBackfilled(true)
+		assert.NoError(t, tableData.MergeColumnsFromDestination(backfilledCol))
+		for _, inMemoryCol := range tableData.inMemoryColumns.GetColumns() {
+			if inMemoryCol.RawName() == backfilledCol.RawName() {
+				assert.True(t, inMemoryCol.Backfilled(), inMemoryCol.RawName())
+			} else {
+				assert.False(t, inMemoryCol.Backfilled(), inMemoryCol.RawName())
+			}
+		}
+
+		// Testing extTimeDetails
+		for _, extTimeDetailsCol := range []string{"ext_date", "ext_time", "ext_datetime"} {
+			col, isOk := tableData.inMemoryColumns.GetColumn(extTimeDetailsCol)
+			assert.True(t, isOk, extTimeDetailsCol)
+			assert.Equal(t, typing.String, col.KindDetails, extTimeDetailsCol)
+			assert.Nil(t, col.KindDetails.ExtendedTimeDetails, extTimeDetailsCol)
+		}
 
-	// Testing extTimeDetails
-	for _, extTimeDetailsCol := range []string{"ext_date", "ext_time", "ext_datetime"} {
-		col, isOk := tableData.inMemoryColumns.GetColumn(extTimeDetailsCol)
-		assert.True(t, isOk, extTimeDetailsCol)
-		assert.Equal(t, typing.String, col.KindDetails, extTimeDetailsCol)
-		assert.Nil(t, col.KindDetails.ExtendedTimeDetails, extTimeDetailsCol)
+		assert.NoError(t, tableData.MergeColumnsFromDestination(columns.NewColumn("ext_time", typing.NewKindDetailsFromTemplate(typing.ETime, ext.TimeKindType))))
+		assert.NoError(t, tableData.MergeColumnsFromDestination(columns.NewColumn("ext_date", typing.NewKindDetailsFromTemplate(typing.ETime, ext.DateKindType))))
+		assert.NoError(t, tableData.MergeColumnsFromDestination(columns.NewColumn("ext_datetime", typing.NewKindDetailsFromTemplate(typing.ETime, ext.DateTimeKindType))))
+
+		dateCol, isOk := tableData.inMemoryColumns.GetColumn("ext_date")
+		assert.True(t, isOk)
+		assert.NotNil(t, dateCol.KindDetails.ExtendedTimeDetails)
+		assert.Equal(t, ext.DateKindType, dateCol.KindDetails.ExtendedTimeDetails.Type)
+
+		timeCol, isOk := tableData.inMemoryColumns.GetColumn("ext_time")
+		assert.True(t, isOk)
+		assert.NotNil(t, timeCol.KindDetails.ExtendedTimeDetails)
+		assert.Equal(t, ext.TimeKindType, timeCol.KindDetails.ExtendedTimeDetails.Type)
+
+		dateTimeCol, isOk := tableData.inMemoryColumns.GetColumn("ext_datetime")
+		assert.True(t, isOk)
+		assert.NotNil(t, dateTimeCol.KindDetails.ExtendedTimeDetails)
+		assert.Equal(t, ext.DateTimeKindType, dateTimeCol.KindDetails.ExtendedTimeDetails.Type)
+
+		// Testing extDecimalDetails
+		// Confirm that before you update, it's invalid.
+		extDecCol, isOk := tableData.inMemoryColumns.GetColumn("ext_dec")
+		assert.True(t, isOk)
+		assert.Equal(t, typing.String, extDecCol.KindDetails)
+
+		extDecimal := typing.EDecimal
+		extDecimal.ExtendedDecimalDetails = decimal.NewDecimal(ptr.ToInt(30), 2, nil)
+		assert.NoError(t, tableData.MergeColumnsFromDestination(columns.NewColumn("ext_dec", extDecimal)))
+		// Now it should be ext decimal type
+		extDecCol, isOk = tableData.inMemoryColumns.GetColumn("ext_dec")
+		assert.True(t, isOk)
+		assert.Equal(t, typing.EDecimal.Kind, extDecCol.KindDetails.Kind)
+		// Check precision and scale too.
+		assert.Equal(t, 30, *extDecCol.KindDetails.ExtendedDecimalDetails.Precision())
+		assert.Equal(t, 2, extDecCol.KindDetails.ExtendedDecimalDetails.Scale())
+
+		// Testing ext_dec_filled since it's already filled out
+		extDecColFilled, isOk := tableData.inMemoryColumns.GetColumn("ext_dec_filled")
+		assert.True(t, isOk)
+		assert.Equal(t, typing.EDecimal.Kind, extDecColFilled.KindDetails.Kind)
+		// Check precision and scale too.
+		assert.Equal(t, 22, *extDecColFilled.KindDetails.ExtendedDecimalDetails.Precision())
+		assert.Equal(t, 2, extDecColFilled.KindDetails.ExtendedDecimalDetails.Scale())
+
+		assert.NoError(t, tableData.MergeColumnsFromDestination(columns.NewColumn("ext_dec_filled", extDecimal)))
+		extDecColFilled, isOk = tableData.inMemoryColumns.GetColumn("ext_dec_filled")
+		assert.True(t, isOk)
+		assert.Equal(t, typing.EDecimal.Kind, extDecColFilled.KindDetails.Kind)
+		// Check precision and scale too.
+		assert.Equal(t, 22, *extDecColFilled.KindDetails.ExtendedDecimalDetails.Precision())
+		assert.Equal(t, 2, extDecColFilled.KindDetails.ExtendedDecimalDetails.Scale())
 	}
+	{
+		tableDataCols := &columns.Columns{}
+		tableData := &TableData{
+			inMemoryColumns: tableDataCols,
+		}
+
+		tableDataCols.AddColumn(columns.NewColumn(strCol, typing.String))
+
+		// Testing string precision
+		stringKindWithPrecision := typing.KindDetails{
+			Kind:                    typing.String.Kind,
+			OptionalStringPrecision: ptr.ToInt(123),
+		}
 
-	tableData.MergeColumnsFromDestination(columns.NewColumn("ext_time", typing.NewKindDetailsFromTemplate(typing.ETime, ext.TimeKindType)))
-	tableData.MergeColumnsFromDestination(columns.NewColumn("ext_date", typing.NewKindDetailsFromTemplate(typing.ETime, ext.DateKindType)))
-	tableData.MergeColumnsFromDestination(columns.NewColumn("ext_datetime", typing.NewKindDetailsFromTemplate(typing.ETime, ext.DateTimeKindType)))
-
-	dateCol, isOk := tableData.inMemoryColumns.GetColumn("ext_date")
-	assert.True(t, isOk)
-	assert.NotNil(t, dateCol.KindDetails.ExtendedTimeDetails)
-	assert.Equal(t, ext.DateKindType, dateCol.KindDetails.ExtendedTimeDetails.Type)
-
-	timeCol, isOk := tableData.inMemoryColumns.GetColumn("ext_time")
-	assert.True(t, isOk)
-	assert.NotNil(t, timeCol.KindDetails.ExtendedTimeDetails)
-	assert.Equal(t, ext.TimeKindType, timeCol.KindDetails.ExtendedTimeDetails.Type)
-
-	dateTimeCol, isOk := tableData.inMemoryColumns.GetColumn("ext_datetime")
-	assert.True(t, isOk)
-	assert.NotNil(t, dateTimeCol.KindDetails.ExtendedTimeDetails)
-	assert.Equal(t, ext.DateTimeKindType, dateTimeCol.KindDetails.ExtendedTimeDetails.Type)
-
-	// Testing extDecimalDetails
-	// Confirm that before you update, it's invalid.
-	extDecCol, isOk := tableData.inMemoryColumns.GetColumn("ext_dec")
-	assert.True(t, isOk)
-	assert.Equal(t, typing.String, extDecCol.KindDetails)
-
-	extDecimal := typing.EDecimal
-	extDecimal.ExtendedDecimalDetails = decimal.NewDecimal(ptr.ToInt(30), 2, nil)
-	tableData.MergeColumnsFromDestination(columns.NewColumn("ext_dec", extDecimal))
-	// Now it should be ext decimal type
-	extDecCol, isOk = tableData.inMemoryColumns.GetColumn("ext_dec")
-	assert.True(t, isOk)
-	assert.Equal(t, typing.EDecimal.Kind, extDecCol.KindDetails.Kind)
-	// Check precision and scale too.
-	assert.Equal(t, 30, *extDecCol.KindDetails.ExtendedDecimalDetails.Precision())
-	assert.Equal(t, 2, extDecCol.KindDetails.ExtendedDecimalDetails.Scale())
-
-	// Testing ext_dec_filled since it's already filled out
-	extDecColFilled, isOk := tableData.inMemoryColumns.GetColumn("ext_dec_filled")
-	assert.True(t, isOk)
-	assert.Equal(t, typing.EDecimal.Kind, extDecColFilled.KindDetails.Kind)
-	// Check precision and scale too.
-	assert.Equal(t, 22, *extDecColFilled.KindDetails.ExtendedDecimalDetails.Precision())
-	assert.Equal(t, 2, extDecColFilled.KindDetails.ExtendedDecimalDetails.Scale())
-
-	tableData.MergeColumnsFromDestination(columns.NewColumn("ext_dec_filled", extDecimal))
-	extDecColFilled, isOk = tableData.inMemoryColumns.GetColumn("ext_dec_filled")
-	assert.True(t, isOk)
-	assert.Equal(t, typing.EDecimal.Kind, extDecColFilled.KindDetails.Kind)
-	// Check precision and scale too.
-	assert.Equal(t, 22, *extDecColFilled.KindDetails.ExtendedDecimalDetails.Precision())
-	assert.Equal(t, 2, extDecColFilled.KindDetails.ExtendedDecimalDetails.Scale())
-
-	// Testing string precision
-	stringKindWithPrecision := typing.KindDetails{
-		Kind:                    typing.String.Kind,
-		OptionalStringPrecision: ptr.ToInt(123),
+		assert.NoError(t, tableData.MergeColumnsFromDestination(columns.NewColumn(strCol, stringKindWithPrecision)))
+		foundStrCol, isOk := tableData.inMemoryColumns.GetColumn(strCol)
+		assert.True(t, isOk)
+		assert.Equal(t, typing.String.Kind, foundStrCol.KindDetails.Kind)
+		assert.Equal(t, 123, *foundStrCol.KindDetails.OptionalStringPrecision)
 	}
-	tableData.MergeColumnsFromDestination(columns.NewColumn(strCol, stringKindWithPrecision))
-	foundStrCol, isOk := tableData.inMemoryColumns.GetColumn(strCol)
-	assert.True(t, isOk)
-	assert.Equal(t, typing.String.Kind, foundStrCol.KindDetails.Kind)
-	assert.Equal(t, 123, *foundStrCol.KindDetails.OptionalStringPrecision)
 }

lib/optimization/table_data.go

@@ -248,16 +248,20 @@ func (t *TableData) ShouldFlush(cfg config.Config) (bool, string) {
 // Prior to merging, we will need to treat `tableConfig` as the source-of-truth and whenever there's discrepancies
 // We will prioritize using the values coming from (2) TableConfig. We also cannot simply do a replacement, as we have in-memory columns
 // That carry metadata for Artie Transfer. They are prefixed with __artie.
-func (t *TableData) MergeColumnsFromDestination(destCols ...columns.Column) {
+func (t *TableData) MergeColumnsFromDestination(destCols ...columns.Column) error {
 	if t == nil || len(destCols) == 0 {
-		return
+		return nil
 	}
 
 	for _, inMemoryCol := range t.inMemoryColumns.GetColumns() {
 		var foundColumn columns.Column
 		var found bool
 		for _, destCol := range destCols {
 			if destCol.RawName() == strings.ToLower(inMemoryCol.RawName()) {
+				if destCol.KindDetails.Kind == typing.Invalid.Kind {
+					return fmt.Errorf("column %q is invalid", destCol.RawName())
+				}
+
 				foundColumn = destCol
 				found = true
 				break
@@ -297,4 +301,6 @@ func (t *TableData) MergeColumnsFromDestination(destCols ...columns.Column) {
 			t.inMemoryColumns.UpdateColumn(inMemoryCol)
 		}
 	}
+
+	return nil
 }

lib/typing/bigquery_test.go

@@ -1,6 +1,7 @@
 package typing
 
 import (
+	"fmt"
 	"testing"
 	"time"
 
@@ -52,7 +53,12 @@ func TestBigQueryTypeToKind(t *testing.T) {
 
 	for bqCol, expectedKind := range bqColToExpectedKind {
 		kd, err := DwhTypeToKind(constants.BigQuery, bqCol, "")
-		assert.NoError(t, err)
+		if expectedKind.Kind == Invalid.Kind {
+			assert.ErrorContains(t, err, fmt.Sprintf("unable to map type: %q to dwh type", bqCol))
+		} else {
+			assert.NoError(t, err)
+		}
+
 		assert.Equal(t, expectedKind.Kind, kd.Kind, bqCol)
 	}
 }

lib/typing/redshift.go

@@ -9,6 +9,7 @@ import (
 )
 
 func redshiftTypeToKind(rawType string, stringPrecision string) KindDetails {
+	// TODO: Check if there are any missing Redshift data types.
 	if strings.HasPrefix(rawType, "numeric") {
 		return ParseNumeric(defaultPrefix, rawType)
 	}
@@ -29,7 +30,7 @@ func redshiftTypeToKind(rawType string, stringPrecision string) KindDetails {
 	switch rawType {
 	case "super":
 		return Struct
-	case "integer", "bigint":
+	case "smallint", "integer", "bigint":
 		return Integer
 	case "double precision":
 		return Float