fix: Override types of aliased columns and named parameters

Signed-off-by: Andrew Haines <andrew@haines.org.nz>

Author: haines

internal/cmd/shim.go

@@ -235,6 +235,7 @@ func pluginQueryColumn(c *compiler.Column) *plugin.Column {
 	}
 	out := &plugin.Column{
 		Name:         c.Name,
+		OriginalName: c.OriginalName,
 		Comment:      c.Comment,
 		NotNull:      c.NotNull,
 		IsArray:      c.IsArray,

internal/codegen/golang/go_type.go

@@ -14,7 +14,11 @@ func addExtraGoStructTags(tags map[string]string, req *plugin.CodeGenRequest, co
 			// Different table.
 			continue
 		}
-		if !sdk.MatchString(oride.ColumnName, col.Name) {
+		cname := col.Name
+		if col.OriginalName != "" {
+			cname = col.OriginalName
+		}
+		if !sdk.MatchString(oride.ColumnName, cname) {
 			// Different column.
 			continue
 		}
@@ -31,8 +35,12 @@ func goType(req *plugin.CodeGenRequest, col *plugin.Column) string {
 		if oride.GoType.TypeName == "" {
 			continue
 		}
+		cname := col.Name
+		if col.OriginalName != "" {
+			cname = col.OriginalName
+		}
 		sameTable := sdk.Matches(oride, col.Table, req.Catalog.DefaultSchema)
-		if oride.Column != "" && sdk.MatchString(oride.ColumnName, col.Name) && sameTable {
+		if oride.Column != "" && sdk.MatchString(oride.ColumnName, cname) && sameTable {
 			return oride.GoType.TypeName
 		}
 	}

internal/compiler/output_columns.go

@@ -190,15 +190,16 @@ func outputColumns(qc *QueryCatalog, node ast.Node) ([]*Column, error) {
 							cname = *res.Name
 						}
 						cols = append(cols, &Column{
-							Name:       cname,
-							Type:       c.Type,
-							Scope:      scope,
-							Table:      c.Table,
-							TableAlias: t.Rel.Name,
-							DataType:   c.DataType,
-							NotNull:    c.NotNull,
-							IsArray:    c.IsArray,
-							Length:     c.Length,
+							Name:         cname,
+							OriginalName: c.Name,
+							Type:         c.Type,
+							Scope:        scope,
+							Table:        c.Table,
+							TableAlias:   t.Rel.Name,
+							DataType:     c.DataType,
+							NotNull:      c.NotNull,
+							IsArray:      c.IsArray,
+							Length:       c.Length,
 						})
 					}
 				}
@@ -486,15 +487,17 @@ func outputColumnRefs(res *ast.ResTarget, tables []*Table, node *ast.ColumnRef)
 				if res.Name != nil {
 					cname = *res.Name
 				}
+
 				cols = append(cols, &Column{
-					Name:       cname,
-					Type:       c.Type,
-					Table:      c.Table,
-					TableAlias: alias,
-					DataType:   c.DataType,
-					NotNull:    c.NotNull,
-					IsArray:    c.IsArray,
-					Length:     c.Length,
+					Name:         cname,
+					OriginalName: c.Name,
+					Type:         c.Type,
+					Table:        c.Table,
+					TableAlias:   alias,
+					DataType:     c.DataType,
+					NotNull:      c.NotNull,
+					IsArray:      c.IsArray,
+					Length:       c.Length,
 				})
 			}
 		}

internal/compiler/query.go

@@ -16,6 +16,7 @@ type Table struct {
 
 type Column struct {
 	Name         string
+	OriginalName string
 	DataType     string
 	NotNull      bool
 	IsArray      bool

internal/compiler/resolve.go

@@ -189,6 +189,7 @@ func (comp *Compiler) resolveCatalogRefs(qc *QueryCatalog, rvs []*ast.RangeVar,
 							Number: ref.ref.Number,
 							Column: &Column{
 								Name:         p.Name(),
+								OriginalName: c.Name,
 								DataType:     dataType(&c.Type),
 								NotNull:      p.NotNull(),
 								IsArray:      c.IsArray,
@@ -413,6 +414,7 @@ func (comp *Compiler) resolveCatalogRefs(qc *QueryCatalog, rvs []*ast.RangeVar,
 					Number: ref.ref.Number,
 					Column: &Column{
 						Name:         p.Name(),
+						OriginalName: c.Name,
 						DataType:     dataType(&c.Type),
 						NotNull:      p.NotNull(),
 						IsArray:      c.IsArray,