--- a/bash-completion.sh	Sat Apr 23 18:49:25 2022 +0200
+++ b/bash-completion.sh	Sun Aug 28 18:03:13 2022 +0200
@@ -38,6 +38,16 @@
 		"false"
 	)
 
+	ON_DUPLICATE_RELATION=(
+		"fail"
+		"insert"
+		# "extend"
+		# "drop"
+		# "skip"
+		# "rename-new"
+		# "rename-old"
+	)
+
 	DATA_SOURCE_STRING=(
 		"Driver=SQLite3;Database=file::memory:"
 		"Driver=SQLite3;Database=file:temp-relpipe.sqlite"
@@ -50,6 +60,7 @@
 	elif [[ "$w2" == "--type-cast"                      ]];    then COMPREPLY=($(compgen -W "${DATA_TYPE[*]}" -- "$w0"))
 	elif [[ "$w1" == "--list-data-sources"              ]];    then COMPREPLY=($(compgen -W "${BOOLEAN_VALUES[*]}" -- "$w0"))
 	elif [[ "$w1" == "--parameter"     && "x$w0" == "x" ]];    then COMPREPLY=("''")
+	elif [[ "$w1" == "--on-duplicate-relation"          ]];    then COMPREPLY=($(compgen -W "${ON_DUPLICATE_RELATION[*]}" -- "$w0"))
 	elif [[ "$w1" == "--copy"          && "x$w0" == "x" ]];    then COMPREPLY=("'.+'")
 	elif [[ "$w1" == "--copy-renamed"  && "x$w0" == "x" ]];    then COMPREPLY=("'.+'")
 	elif [[ "$w2" == "--copy-renamed"  && "x$w0" == "x" ]];    then COMPREPLY=("'copy_of_\$0'")
@@ -60,6 +71,7 @@
 			"--relation"
 			"--type-cast"
 			"--parameter"
+			"--on-duplicate-relation"
 			"--copy"
 			"--copy-renamed"
 			"--list-data-sources"