# SQL definition for columns's attributes change
# CAUTION: Do not modify this file unless you know what you are doing.
# Code generation can be broken if incorrect changes are made.

%if {has-changes} %then
	%set {alter-table} [ALTER TABLE ] {table} [ ALTER COLUMN ] {name}
	%set {ddl-end} [;] $br [-- ddl-end --] $br

	%if {type} %then
		{alter-table}
		[ TYPE ] {type}

		%if {collation} %then
			[ COLLATE ] {collation}
		%end

		{ddl-end}
	%end

	%if {default-value} %then
		{alter-table}

		%if ({default-value}=="unset") %then
			[ DROP DEFAULT]
		%else
			[ SET DEFAULT ] {default-value}
		%end

		{ddl-end}
	%end

	%if {not-null} %then
		{alter-table}

		%if ({not-null}=="unset") %then
			[ DROP ]
		%else
			[ SET ]
		%end

		[NOT NULL]

		{ddl-end}
	%end

	%if {cur-identity-type} %and {min-value} %then
		{alter-table}
		[ SET GENERATED ] {cur-identity-type} [ SET MINVALUE ] {min-value}
		{ddl-end}
	%end

	%if {cur-identity-type} %and {max-value} %then
		{alter-table}
		[ SET GENERATED ] {cur-identity-type} [ SET MAXVALUE ] {max-value}
		{ddl-end}
	%end

	%if {cur-identity-type} %and {start} %then
		{alter-table}
		[ SET GENERATED ] {cur-identity-type} [ SET START WITH ] {start}
		{ddl-end}
	%end

	%if {cur-identity-type} %and {cache} %then
		{alter-table}
		[ SET GENERATED ] {cur-identity-type} [ SET CACHE ] {cache}
		{ddl-end}
	%end

	%if {cur-identity-type} %and {increment} %then
		{alter-table}
		[ SET GENERATED ] {cur-identity-type} [ SET INCREMENT ] {increment}
		{ddl-end}
	%end

	%if {cur-identity-type} %and {cycle} %then

		{alter-table}
		[ SET GENERATED ] {cur-identity-type} [ SET]

		%if ({cycle}=="false") %then [ NO] %end

		[ CYCLE]

		{ddl-end}
	%end

	%if {identity-type} %or {new-identity-type} %then
		{alter-table}

		%if ({identity-type}=="unset") %then
			[ DROP IDENTITY]
		%else
			%if {new-identity-type} %then
				[ SET GENERATED ] {new-identity-type}
			%else
				[ ADD GENERATED ] {identity-type} [ AS IDENTITY]
			%end
		%end

		{ddl-end}
	%end
%end
