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DocumentDB
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Firebird
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TimescaleDB
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11.1
11.5
12.1
0.114 (MongoDB 7.0)
1.4 LTS
3.0
4.0
5.0
10.2
10.3
10.4
10.5
10.6
10.7
10.8
10.9
10.11
11.4
11.8
12.3
5.5
5.6
5.7
8.0
8.4
9.7
11g Release 2
18c
21c
23ai
23c
26ai
8.4
9.3
9.4
9.5
9.6
10
11
12
13
14
15
16
17
18
19 beta 3
2012
2014
2016
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2017 (Linux)
2019
2019 (Linux)
2022
2025
3.8
3.16
3.27
3.39
3.45
3.53
2.11
2.14
2.28
2.6
2.8
2.18
2024.2 LTS
2025.2 LTS
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Sakila
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AdventureWorks
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AdventureWorks
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AdventureWorks
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select id, description, json_array_elements(letters) from ( values (1, 'good', '["a","b", "c"]'::json), (2, 'bad', '[]'::json) ) as aTable(id,description,letters);
id
description
json_array_elements
1
good
"a"
1
good
"b"
1
good
"c"
SELECT 3