fix: remove foreign key constraint

[rllola]

fix issue #76

Remove the foreign key constraint on the secondary tables that collect the decoded transaction data. It should speed up things and remove the fk violation error because the indexer try to insert the decoded transaction before the raw transaction info.

We are assuming They would be there because they come from the same source of information.

[romanv1812]

indexer |
postgres | 2024-01-19 11:08:27.444 UTC [96] ERROR: duplicate key value violates unique constraint "vote_proposal_pkey"
postgres | 2024-01-19 11:08:27.444 UTC [96] DETAIL: Key (vote_proposal_id)=(\x0000000000000000) already exists.
postgres | 2024-01-19 11:08:27.444 UTC [96] STATEMENT: INSERT INTO public_testnet_15.vote_proposal(
postgres | vote_proposal_id,
indexer | 2024-01-19T11:08:27.444561Z ERROR namadexer::indexer: Closing block producer task due to an error saving last block: Database error: error returned from database: duplicate key value violates unique constraint "vote_proposal_pkey"
indexer | at src/indexer/mod.rs:225
indexer |
postgres | vote,
postgres | vote_default,
postgres | voter,
postgres | tx_id
postgres | )VALUES ($1, $2, $3, $4, $5)
postgres | 2024-01-19 11:08:27.444 UTC [96] LOG: could not receive data from client: Connection reset by peer
indexer | Error: DB(Database(PgDatabaseError { severity: Error, code: "23505", message: "duplicate key value violates unique constraint "vote_proposal_pkey"", detail: Some("Key (vote_proposal_id)=(\x0000000000000000) already exists."), hint: None, position: None, where: None, schema: Some("public_testnet_15"), table: Some("vote_proposal"), column: None, data_type: None, constraint: Some("vote_proposal_pkey"), file: Some("nbtinsert.c"), line: Some(663), routine: Some("_bt_check_unique") }))
indexer exited with code 1

[rllola]

@romanv1812
This is an other error unrelated to this. Could you create a new issue so we can look at this ?