![]() (Note, I'm not sure if you really wanted that column named "Column", requiring identifier quoting to avoid keyword clash, but, there you are. Obviously you can extend this to handle a delimiter of your choosing, etc. This function is used to replace each array element equal to the given value with a new value. Pg=> SELECT "Column" FROM psplit_to_rows('how now brown cow') d("Column") Pg=> CREATE FUNCTION psplit_to_rows(text) RETURNS SETOF TEXT AS $$ Original answer: using PL/perl: pg=> CREATE LANGUAGE plperl ![]() Pg=> SELECT "Column" FROM string_to_rows('how now brown cow') d("Column") Updated answer: using PL/pgSQL: pg=> CREATE OR REPLACE FUNCTION string_to_rows(text) RETURNS SETOF TEXT AS $$įOR i IN array_lower(elems, 1). Afterwards you need to remove the old "Tv" element from the updated array.I think you'll have to RETURNS SET or RETURNS TABLE yourself.Now you can use these indexes to place the new "TV" element to the right place with jsonb_set() ord, replace(string, i.oldstr, i.newstr) from recursivereplace r join inputrows i on i.ord r.ord+ 1 ) select string from recursivereplace order by ord.Combine both and you get this: alvherre select unnest (stringtoarray ('the quick lazy fox', ' ')) unnest - the quick lazy fox (4 filas) Since 8.2 does not have. I want to replace them on a condition that if. But the two approaches differ importantly: arrayreplace () changes all values that match the specified value to the same new value, insensitively to their. There are some array elements which are greater than 360. Each of the approaches described in this section, using the arrayreplace () function and setting an addressed array value explicitly and in place, can be used to change values in an array. I will use flags i and g for case-insensitive and global matching, respectively. PostgreSQL: Replace values greater than a certain limit in array elements. Fortunately, PostgreSQL is your friend and provides the jsonbset function: jsonbset (target jsonb, path text, newvalue jsonb, createmissing boolean) Given a jsonb column, you can set a new value on the specified path: Reference: PostgreSQL Json functions. It has the syntax regexpreplace(source, pattern, replacement, flags ). SELECT jsonstripnulls ( jsonbuildobject ( 'Name', shortname, 'IDS', CASE SIGN (position ('ACCEPTED' IN status) ) WHEN 1 THEN jsonbbuild. Edit: But as you require non-null values to show as an array, move the jsonbbuildarray () function into the case statement. Expand the array elements and show their indexes with WITH ORDINALITY You can split an array to a resultset by using the unnest function, and you can turn a string literal into an array by using the stringtoarray function. If you need stricter replacement matching, PostgreSQL's regexpreplace function can match using POSIX regular expression patterns. Note that jsonstripnulls () doesn't remove null values from JSON arrays.Jsonb_array_elements_text(mydata) WITH ORDINALITY as elem(value, elem_id) Jsonb_set(mydata, ARRAY::text, '"TV"') - 'Tv' If you really want to use jsonb_set (which make no sense here, I believe) you could do something like: SELECT Jsonb_array_elements_text(mydata) as elem Jsonb_agg(CASE WHEN elem = 'Tv' THEN 'TV' ELSE elem END) as new_array In any other ways ( if you want to keep the order!) you need to expand the array elements into separate rows (either for retrieving the index of the old "Tv" to set the new "TV" to the same position using jsonb_set or for string search/replace) and reaggregate all. Let me know other alternatives and best practices as I have 5M records to do update that and I want to use something like jsonb_set on myĬase also. I want to know other alternatives to update that element on jsonb column. SET amenity_categories = replace(amenity_categories::TEXT,'"Tv"','"TV"')::jsonb Note: There are two differences in the behavior of stringtoarray from pre-9.1 versions of PostgreSQL. ![]() What is working: UPDATE test_jsonb_update In arraytostring, if the null-string parameter is omitted or NULL, any null elements in the array are simply skipped and not represented in the output string. Except where noted, these functions and operators are declared to accept and return type text. Strings in this context include values of the types character, character varying, and text. I am using postgresql 12.4 with 5M rows on that table. This section describes functions and operators for examining and manipulating string values. I want to update a jsonb column to replace an element of array inside it e.g Tv to TV.
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