PrestoDB: Filter to get rows where element is contained in map column's keys
I have a column of type map(varchar, varchar). I would like to filter on the keys of the map to get rows of the table where the map contains a given string.
How do I check whether a varchar is contained in the keys of a map type column?
prestodb
asked Nov 20 at 1:38
Omkar Neogi
115210
add a comment |
I have a column of type map(varchar, varchar). I would like to filter on the keys of the map to get rows of the table where the map contains a given string.
How do I check whether a varchar is contained in the keys of a map type column?
prestodb
asked Nov 20 at 1:38
Omkar Neogi
115210
add a comment |
I have a column of type map(varchar, varchar). I would like to filter on the keys of the map to get rows of the table where the map contains a given string.
How do I check whether a varchar is contained in the keys of a map type column?
prestodb
asked Nov 20 at 1:38
Omkar Neogi
115210
I have a column of type map(varchar, varchar). I would like to filter on the keys of the map to get rows of the table where the map contains a given string.
How do I check whether a varchar is contained in the keys of a map type column?
prestodb
prestodb
asked Nov 20 at 1:38
Omkar Neogi
115210
asked Nov 20 at 1:38
Omkar Neogi
115210
edited Nov 20 at 3:38
asked Nov 20 at 1:38
Omkar Neogi
115210
asked Nov 20 at 1:38
Omkar Neogi
115210
asked Nov 20 at 1:38
Omkar Neogi
115210
115210
add a comment |
add a comment |
1 Answer
1
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oldest
votes
Get rows with a certain string (varchar) / strings as keys
select * from planet
where map_keys(tags) = ARRAY['barrier'];
Get rows where an array column contains a particular string (varchar)
select * from planet
where contains(map_keys(tags), 'barrier');
In this case,
- table name: planet
- schema of column "tags": map(varchar, varchar)
- String I was searching for in column tags: 'barrier'
answered Nov 20 at 3:37
Omkar Neogi
115210
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Get rows with a certain string (varchar) / strings as keys
select * from planet
where map_keys(tags) = ARRAY['barrier'];
Get rows where an array column contains a particular string (varchar)
select * from planet
where contains(map_keys(tags), 'barrier');
In this case,
- table name: planet
- schema of column "tags": map(varchar, varchar)
- String I was searching for in column tags: 'barrier'
answered Nov 20 at 3:37
Omkar Neogi
115210
add a comment |
Get rows with a certain string (varchar) / strings as keys
select * from planet
where map_keys(tags) = ARRAY['barrier'];
Get rows where an array column contains a particular string (varchar)
select * from planet
where contains(map_keys(tags), 'barrier');
In this case,
- table name: planet
- schema of column "tags": map(varchar, varchar)
- String I was searching for in column tags: 'barrier'
answered Nov 20 at 3:37
Omkar Neogi
115210
add a comment |
Get rows with a certain string (varchar) / strings as keys
select * from planet
where map_keys(tags) = ARRAY['barrier'];
Get rows where an array column contains a particular string (varchar)
select * from planet
where contains(map_keys(tags), 'barrier');
In this case,
- table name: planet
- schema of column "tags": map(varchar, varchar)
- String I was searching for in column tags: 'barrier'
answered Nov 20 at 3:37
Omkar Neogi
115210
Get rows with a certain string (varchar) / strings as keys
select * from planet
where map_keys(tags) = ARRAY['barrier'];
Get rows where an array column contains a particular string (varchar)
select * from planet
where contains(map_keys(tags), 'barrier');
In this case,
- table name: planet
- schema of column "tags": map(varchar, varchar)
- String I was searching for in column tags: 'barrier'
answered Nov 20 at 3:37
Omkar Neogi
115210
answered Nov 20 at 3:37
Omkar Neogi
115210
answered Nov 20 at 3:37
Omkar Neogi
115210
answered Nov 20 at 3:37
Omkar Neogi
115210
115210
add a comment |
add a comment |
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