Certainly! Here is the reframed version of your request:
I have a JSONB column called metadata in my PostgreSQL database. I want to extract the values of a specific key within this column.
For example, consider the following JSON structure:
<code>{
"key1": "value1",
"key2": [
{"key3": "value3"},
{"key3": "value4"}
]
}
</code>
<code>{
"key1": "value1",
"key2": [
{"key3": "value3"},
{"key3": "value4"}
]
}
</code>
{
"key1": "value1",
"key2": [
{"key3": "value3"},
{"key3": "value4"}
]
}
I need to retrieve the values of key3, even if they are nested at various levels (up to 4 or 5 levels deep). Is there a generic approach to dynamically generate a PostgreSQL SQL query for this purpose?