nodeColumnTableDef handles *tree.ColumnTableDef nodes.
(ctx *Context, node *tree.ColumnTableDef)
| 29 | |
| 30 | // nodeColumnTableDef handles *tree.ColumnTableDef nodes. |
| 31 | func nodeColumnTableDef(ctx *Context, node *tree.ColumnTableDef) (*vitess.ColumnDefinition, error) { |
| 32 | if node == nil { |
| 33 | return nil, nil |
| 34 | } |
| 35 | if len(node.Nullable.ConstraintName) > 0 || |
| 36 | len(node.DefaultExpr.ConstraintName) > 0 || |
| 37 | len(node.UniqueConstraintName) > 0 { |
| 38 | return nil, errors.Errorf("non-foreign key column constraint names are not yet supported") |
| 39 | } |
| 40 | convertType, resolvedType, err := nodeResolvableTypeReference(ctx, node.Type, false) |
| 41 | if err != nil { |
| 42 | return nil, err |
| 43 | } |
| 44 | |
| 45 | if resolvedType == pgtypes.Record { |
| 46 | return nil, errors.Errorf(`column "%s" has pseudo-type record`, node.Name.String()) |
| 47 | } |
| 48 | |
| 49 | var isNull vitess.BoolVal |
| 50 | var isNotNull vitess.BoolVal |
| 51 | switch node.Nullable.Nullability { |
| 52 | case tree.NotNull: |
| 53 | isNull = false |
| 54 | isNotNull = true |
| 55 | case tree.Null: |
| 56 | isNull = true |
| 57 | isNotNull = false |
| 58 | case tree.SilentNull: |
| 59 | isNull = true |
| 60 | isNotNull = false |
| 61 | default: |
| 62 | return nil, errors.Errorf("unknown NULL type encountered") |
| 63 | } |
| 64 | keyOpt := vitess.ColumnKeyOption(0) // colKeyNone, unexported for some reason |
| 65 | if node.PrimaryKey.IsPrimaryKey { |
| 66 | keyOpt = 1 // colKeyPrimary |
| 67 | isNull = false |
| 68 | isNotNull = true |
| 69 | } else if node.Unique { |
| 70 | keyOpt = 3 // colKeyUnique |
| 71 | } |
| 72 | defaultExpr, err := nodeExpr(ctx, node.DefaultExpr.Expr) |
| 73 | if err != nil { |
| 74 | return nil, err |
| 75 | } |
| 76 | // Wrap any default expression using a function call in parens to match MySQL's column default requirements |
| 77 | if _, ok := defaultExpr.(*vitess.FuncExpr); ok { |
| 78 | defaultExpr = &vitess.ParenExpr{Expr: defaultExpr} |
| 79 | } |
| 80 | |
| 81 | if node.References.Table != nil { |
| 82 | if len(node.References.Col) == 0 { |
| 83 | return nil, errors.Errorf("implicit primary key matching on column foreign key is not yet supported") |
| 84 | } |
| 85 | // Callers register the foreign key via the table constraint list, so ForeignKeyDef |
| 86 | // is left unset here to avoid creating the same constraint twice. |
| 87 | } |
| 88 |
no test coverage detected