DuckDB function contains — contains • dd

Returns true if search_string is found within string.

Returns true if the list contains the element.

Checks if a map contains a given key.

Arguments

string: VARCHAR
search_string: VARCHAR
col0: T[] | MAP(K, V) | STRUCT
col1: T | K | ANY

Value

BOOLEAN

Overloads

contains(string = VARCHAR, search_string = VARCHAR)
contains(col0 = `T[]`, col1 = T)
contains(col0 = `MAP(K, V)`, col1 = K)
contains(col0 = STRUCT, col1 = ANY)

SQL examples

contains('abc', 'a')
contains([1, 2, NULL], 1)
contains(MAP {'key1': 10, 'key2': 20, 'key3': 30}, 'key2')

See also

Other list: array_extract(), array_length(), concat(), flatten(), generate_series(), len(), list_aggregate(), list_concat(), list_contains(), list_cosine_distance(), list_cosine_similarity(), list_distance(), list_distinct(), list_extract(), list_filter(), list_grade_up(), list_has_all(), list_has_any(), list_inner_product(), list_intersect(), list_negative_inner_product(), list_position(), list_reduce(), list_resize(), list_reverse_sort(), list_select(), list_slice(), list_sort(), list_transform(), list_unique(), list_value(), list_where(), list_zip(), or–or, range(), repeat(), unpivot_list()

Other string: array_extract(), ascii(), bar(), bin(), bit_length(), chr(), concat(), concat_ws(), formatReadableDecimalSize(), format_bytes(), from_base64(), greatest(), hash(), hex(), ilike_escape(), instr(), least(), left(), left_grapheme(), len(), length_grapheme(), like_escape(), list_slice(), lower(), lpad(), ltrim(), md5(), md5_number(), nfc_normalize(), not_ilike_escape(), not_like_escape(), or–or, parse_dirname(), parse_dirpath(), parse_filename(), parse_formatted_bytes(), parse_path(), prefix(), printf(), repeat(), replace(), reverse(), right(), right_grapheme(), rpad(), rtrim(), sha1(), sha256(), starts_with(), string_split(), strip_accents(), strlen(), substring(), substring_grapheme(), suffix(), to_base(), to_base64(), translate(), trim(), unbin(), unhex(), unicode(), upper(), url_decode(), url_encode()