adds more detailed error wrappers to mysql table init stmts for easie…

…r debugging

backend/pkg/sqlmanager/mysql/mysql-manager.go

@@ -316,7 +316,7 @@ func (m *MysqlManager) GetTableInitStatements(ctx context.Context, tables []*sql
 				Tables: tables,
 			})
 			if err != nil {
-				return err
+				return fmt.Errorf("failed to build mysql database table schemas by schemas and tables: %w", err)
 			}
 			colDefMapMu.Lock()
 			defer colDefMapMu.Unlock()
@@ -337,7 +337,7 @@ func (m *MysqlManager) GetTableInitStatements(ctx context.Context, tables []*sql
 				Tables: tables,
 			})
 			if err != nil {
-				return err
+				return fmt.Errorf("failed to build mysql table constraints: %w", err)
 			}
 			constraintMapMu.Lock()
 			defer constraintMapMu.Unlock()
@@ -358,7 +358,7 @@ func (m *MysqlManager) GetTableInitStatements(ctx context.Context, tables []*sql
 				Tables: tables,
 			})
 			if err != nil {
-				return err
+				return fmt.Errorf("failed to build mysql indices by schemas and tables: %w", err)
 			}
 
 			indexMapMu.Lock()
@@ -407,7 +407,7 @@ func (m *MysqlManager) GetTableInitStatements(ctx context.Context, tables []*sql
 
 			columnDefaultStr, err := convertUInt8ToString(record.ColumnDefault)
 			if err != nil {
-				return nil, err
+				return nil, fmt.Errorf("failed to convert column default to string: %w", err)
 			}
 			var columnDefaultType *string
 			if identityType != nil && columnDefaultStr != "" && *identityType == "" {
@@ -419,12 +419,12 @@ func (m *MysqlManager) GetTableInitStatements(ctx context.Context, tables []*sql
 			}
 			columnDefaultStr, err = EscapeMysqlDefaultColumn(columnDefaultStr, columnDefaultType)
 			if err != nil {
-				return nil, err
+				return nil, fmt.Errorf("failed to escape column default: %w", err)
 			}
 
 			genExp, err := convertUInt8ToString(record.GenerationExp)
 			if err != nil {
-				return nil, err
+				return nil, fmt.Errorf("failed to convert generation expression to string: %w", err)
 			}
 			columns = append(columns, buildTableCol(&buildTableColRequest{
 				ColumnName:          record.ColumnName,
@@ -444,7 +444,7 @@ func (m *MysqlManager) GetTableInitStatements(ctx context.Context, tables []*sql
 		for _, constraint := range constraintmap[key] {
 			stmt, err := buildAlterStatementByConstraint(constraint)
 			if err != nil {
-				return nil, err
+				return nil, fmt.Errorf("failed to build alter table statement by constraint: %w", err)
 			}
 			info.AlterTableStatements = append(info.AlterTableStatements, stmt)
 		}