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remarks on #3809

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This commit is contained in:
Christian Grothoff 2015-06-03 12:21:50 +02:00
parent 600dbaf594
commit 3d0f422734
1 changed files with 40 additions and 46 deletions
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86
src/mintdb/plugin_mintdb_postgres.c
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@ -211,8 +211,7 @@ postgres_create_tables (void *cls,
hence, do not use `ON DELETE CASCASE' on these rows in the tables
referencing these rows */
SQLEXEC ("CREATE TABLE IF NOT EXISTS denominations"
"("
" pub BYTEA PRIMARY KEY"
"(pub BYTEA PRIMARY KEY"
",valid_from INT8 NOT NULL"
",expire_withdraw INT8 NOT NULL"
",expire_spend INT8 NOT NULL"
@ -231,22 +230,24 @@ postgres_create_tables (void *cls,
",fee_refresh_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
")");
/* reserves table is for summarization of a reserve. It is updated when new
funds are added and existing funds are withdrawn */
funds are added and existing funds are withdrawn. The 'expiration_date'
can be used to eventually get rid of reserves that have not been used
for a very long time (either by refunding the owner or by greedily
grabbing the money, depending on the Mint's terms of service) */
SQLEXEC ("CREATE TABLE IF NOT EXISTS reserves"
"("
" reserve_pub BYTEA PRIMARY KEY"
"(reserve_pub BYTEA PRIMARY KEY"
",current_balance_val INT8 NOT NULL"
",current_balance_frac INT4 NOT NULL"
",current_balance_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
",expiration_date INT8 NOT NULL"
")");
/* reserves_in table collects the transactions which transfer funds into the
reserve. The amount and expiration date for the corresponding reserve are
updated when new transfer funds are added. The rows of this table
correspond to each incoming transaction. */
reserve. The rows of this table
correspond to each incoming transaction.
FIXME: instead of an 'expiration_date', an 'execution_date'
would be more appropriate here (#3809). */
SQLEXEC("CREATE TABLE IF NOT EXISTS reserves_in"
"("
" reserve_pub BYTEA REFERENCES reserves (reserve_pub) ON DELETE CASCADE"
"(reserve_pub BYTEA REFERENCES reserves (reserve_pub) ON DELETE CASCADE"
",balance_val INT8 NOT NULL"
",balance_frac INT4 NOT NULL"
",balance_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
@ -265,8 +266,7 @@ postgres_create_tables (void *cls,
TODO: maybe rename to "reserves_out"?
TODO: is blind_ev really a _primary key_? Is this constraint useful? */
SQLEXEC ("CREATE TABLE IF NOT EXISTS collectable_blindcoins"
"("
"blind_ev BYTEA PRIMARY KEY"
"(blind_ev BYTEA PRIMARY KEY"
",denom_pub BYTEA NOT NULL REFERENCES denominations (pub)"
",denom_sig BYTEA NOT NULL"
",reserve_pub BYTEA NOT NULL CHECK (LENGTH(reserve_pub)=32) REFERENCES reserves (reserve_pub) ON DELETE CASCADE"
@ -280,8 +280,7 @@ postgres_create_tables (void *cls,
TODO: maybe rename to "spent_coins"?
TODO: maybe have two tables, one for spending and one for refreshing, instead of optional refresh_session_hash? */
SQLEXEC("CREATE TABLE IF NOT EXISTS known_coins "
"("
" coin_pub BYTEA NOT NULL PRIMARY KEY"
"(coin_pub BYTEA NOT NULL PRIMARY KEY"
",denom_pub BYTEA NOT NULL REFERENCES denominations (pub)"
",denom_sig BYTEA NOT NULL"
")");
@ -295,18 +294,16 @@ postgres_create_tables (void *cls,
* TODO: isn't "reveal_ok" no longer interesting / required / used?
*/
SQLEXEC("CREATE TABLE IF NOT EXISTS refresh_sessions "
"("
" session_hash BYTEA PRIMARY KEY CHECK (LENGTH(session_hash)=64)"
"(session_hash BYTEA PRIMARY KEY CHECK (LENGTH(session_hash)=64)"
",num_oldcoins INT2 NOT NULL"
",num_newcoins INT2 NOT NULL"
",noreveal_index INT2 NOT NULL"
// non-zero if all reveals were ok
// and the new coin signatures are ready
",reveal_ok BOOLEAN NOT NULL DEFAULT false"
") ");
")");
SQLEXEC("CREATE TABLE IF NOT EXISTS refresh_melts "
"("
" coin_pub BYTEA NOT NULL REFERENCES known_coins (coin_pub)"
"(coin_pub BYTEA NOT NULL REFERENCES known_coins (coin_pub)"
",session BYTEA NOT NULL REFERENCES refresh_sessions (session_hash)"
",oldcoin_index INT2 NOT NULL"
",coin_sig BYTEA NOT NULL CHECK(LENGTH(coin_sig)=64)"
@ -317,15 +314,13 @@ postgres_create_tables (void *cls,
once in a refresh session */
") ");
SQLEXEC("CREATE TABLE IF NOT EXISTS refresh_order "
"( "
" session_hash BYTEA NOT NULL CHECK (LENGTH(session_hash)=64) REFERENCES refresh_sessions (session_hash)"
"(session_hash BYTEA NOT NULL CHECK (LENGTH(session_hash)=64) REFERENCES refresh_sessions (session_hash)"
",newcoin_index INT2 NOT NULL "
",denom_pub BYTEA NOT NULL "
",PRIMARY KEY (session_hash, newcoin_index)"
") ");
")");
SQLEXEC("CREATE TABLE IF NOT EXISTS refresh_commit_link"
"("
" session_hash BYTEA NOT NULL REFERENCES refresh_sessions (session_hash)"
"(session_hash BYTEA NOT NULL REFERENCES refresh_sessions (session_hash)"
",transfer_pub BYTEA NOT NULL CHECK(LENGTH(transfer_pub)=32)"
",link_secret_enc BYTEA NOT NULL"
// index of the old coin in the customer's request
@ -335,8 +330,7 @@ postgres_create_tables (void *cls,
",cnc_index INT2 NOT NULL"
")");
SQLEXEC("CREATE TABLE IF NOT EXISTS refresh_commit_coin"
"("
" session_hash BYTEA NOT NULL REFERENCES refresh_sessions (session_hash) "
"(session_hash BYTEA NOT NULL REFERENCES refresh_sessions (session_hash) "
",link_vector_enc BYTEA NOT NULL"
// index of the new coin in the customer's request
",newcoin_index INT2 NOT NULL"
@ -345,8 +339,7 @@ postgres_create_tables (void *cls,
",coin_ev BYTEA NOT NULL"
")");
SQLEXEC("CREATE TABLE IF NOT EXISTS refresh_collectable"
"("
" session_hash BYTEA NOT NULL CHECK(LENGTH(session_hash)=64) REFERENCES refresh_sessions (session_hash) "
"(session_hash BYTEA NOT NULL CHECK(LENGTH(session_hash)=64) REFERENCES refresh_sessions (session_hash) "
",ev_sig BYTEA NOT NULL"
",newcoin_index INT2 NOT NULL"
")");
@ -359,9 +352,8 @@ postgres_create_tables (void *cls,
and could be used by the mearchant for further inquriries about
the deposit's execution. */
SQLEXEC("CREATE TABLE IF NOT EXISTS deposits "
"( "
/* FIXME #3769: the following primary key may be too restrictive */
" coin_pub BYTEA NOT NULL PRIMARY KEY CHECK (LENGTH(coin_pub)=32)"
"(coin_pub BYTEA NOT NULL PRIMARY KEY CHECK (LENGTH(coin_pub)=32)"
",denom_pub BYTEA NOT NULL REFERENCES denominations (pub)"
",denom_sig BYTEA NOT NULL"
",transaction_id INT8 NOT NULL"
@ -443,13 +435,14 @@ postgres_prepare (PGconn *db_conn)
"LIMIT 1; ",
1, NULL);
PREPARE ("create_reserve",
"INSERT INTO reserves ("
" reserve_pub,"
" current_balance_val,"
" current_balance_frac,"
" current_balance_curr,"
" expiration_date) VALUES ("
"$1, $2, $3, $4, $5);",
"INSERT INTO reserves "
"(reserve_pub"
",current_balance_val"
",current_balance_frac"
",current_balance_curr"
",expiration_date"
") VALUES "
"($1, $2, $3, $4, $5);",
5, NULL);
PREPARE ("update_reserve",
"UPDATE reserves "
@ -460,15 +453,16 @@ postgres_prepare (PGconn *db_conn)
"WHERE current_balance_curr=$4 AND reserve_pub=$5",
5, NULL);
PREPARE ("create_reserves_in_transaction",
"INSERT INTO reserves_in ("
" reserve_pub,"
" balance_val,"
" balance_frac,"
" balance_curr,"
" details,"
" expiration_date) VALUES ("
" $1, $2, $3, $4, $5, $6);",
5, NULL);
"INSERT INTO reserves_in "
"(reserve_pub"
",balance_val"
",balance_frac"
",balance_curr"
",details"
",expiration_date"
") VALUES "
"($1, $2, $3, $4, $5, $6);",
6, NULL);
PREPARE ("get_reserves_in_transactions",
"SELECT"
" balance_val"