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create table PROPOSAL (id serial, details jsonb); insert into PROPOSAL values (1, '{"UNITS": [1, 2]}'),(2, '{"UNITS": [1]}'); create table UNITS (id serial, DMA_ID int); insert into UNITS values (1, 1), (2, 2); create table DMA (id serial, name varchar); insert into DMA values (1, 'SOLAPUR'), (2, 'PUNE'); SELECT DMA.name, COUNT(*) PROPOSAL_COUNT FROM DMA JOIN UNITS ON DMA.id=UNITS.dma_id JOIN PROPOSAL ON to_jsonb(UNITS.id) <@ (PROPOSAL.details->'UNITS') GROUP BY DMA.name;

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