ALTER TABLE {{qual_table .SchemaName .TableName}}
  ADD COLUMN IF NOT EXISTS {{quote_ident .ColumnName}} {{.ColumnType}}
{{- if .Generated}} GENERATED ALWAYS AS ({{.Generated}}) STORED{{end}}
{{- if .Identity}} GENERATED {{.Identity}} AS IDENTITY{{end}}
{{- if and .Default (not .Generated) (not .Identity)}} DEFAULT {{.Default}}{{end}}
{{- if .NotNull}} NOT NULL{{end}};