722715c01f
This script removes dangling rows from the database, for example 'trace' entries with a variant_id not mentioned in the 'variants' table, or result rows referencing a nonexistent 'fsppilot' entry. IOW, this script enforces referential integrity as it would be maintained by foreign key constraints (that can only be used with InnoDB tables). Change-Id: I4dce1e46277d470f8c3eca31447ca71f63c6353f
150 lines
2.8 KiB
Bash
Executable File
150 lines
2.8 KiB
Bash
Executable File
#!/bin/bash
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#
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# This script removes dangling rows from the database, for example 'trace'
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# entries with a variant_id not mentioned in the 'variants' table, or result
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# rows referencing a nonexistent 'fsppilot' entry. IOW, this script enforces
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# referential integrity as it would be maintained by foreign key constraints
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# (that can only be used with InnoDB tables).
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#
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if [ -z "$1" -o -z "$2" ]
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then
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echo "usage: $0 dbname resulttable" >&2
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exit 1
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fi
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DB=$1
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RESULT=$2
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MYSQL=mysql
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function table_exists()
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{
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N=$(echo "SHOW TABLES LIKE '$1'" | $MYSQL $DB | wc -l)
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[ $N -gt 0 ]
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return
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}
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if table_exists trace
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then
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echo -n "removing widowed entries in trace ..."
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echo " "$(
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$MYSQL $DB <<EOT
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DELETE FROM trace
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WHERE variant_id NOT IN
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(SELECT id FROM variant);
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SELECT ROW_COUNT() AS "deleted rows:";
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EOT
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)
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fi
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if table_exists fsppilot
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then
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echo -n "removing widowed entries in fsppilot ..."
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echo " "$(
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$MYSQL $DB <<EOT
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DELETE p FROM fsppilot p
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LEFT JOIN trace t
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ON p.variant_id = t.variant_id
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AND p.instr2 = t.instr2
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AND p.data_address = t.data_address
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WHERE t.variant_id IS NULL;
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SELECT ROW_COUNT() AS "deleted rows:";
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EOT
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)
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fi
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if table_exists fspgroup
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then
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echo -n "removing widowed entries in fspgroup ..."
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echo " "$(
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$MYSQL $DB <<EOT
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DELETE g FROM fspgroup g
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LEFT JOIN fsppilot p
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ON g.pilot_id = p.id
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WHERE p.id IS NULL;
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SELECT ROW_COUNT() AS "deleted rows:";
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EOT
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)
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fi
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if table_exists $RESULT
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then
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echo -n "removing widowed entries in $RESULT ..."
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echo " "$(
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$MYSQL $DB <<EOT
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DELETE r FROM $RESULT r
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LEFT JOIN fsppilot p
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ON r.pilot_id = p.id
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WHERE p.id IS NULL;
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SELECT ROW_COUNT() AS "deleted rows:";
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EOT
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)
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fi
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if table_exists objdump
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then
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echo -n "removing widowed entries in objdump ..."
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echo " "$(
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$MYSQL $DB <<EOT
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DELETE FROM objdump
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WHERE variant_id NOT IN
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(SELECT id FROM variant);
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SELECT ROW_COUNT() AS "deleted rows:";
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EOT
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)
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fi
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if table_exists fulltrace
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then
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echo -n "removing widowed entries in fulltrace ..."
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echo " "$(
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$MYSQL $DB <<EOT
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DELETE FROM fulltrace
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WHERE variant_id NOT IN
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(SELECT id FROM variant);
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SELECT ROW_COUNT() AS "deleted rows:";
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EOT
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)
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fi
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if table_exists dbg_source
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then
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echo -n "removing widowed entries in dbg_source ..."
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echo " "$(
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$MYSQL $DB <<EOT
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DELETE FROM dbg_source
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WHERE variant_id NOT IN
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(SELECT id FROM variant);
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SELECT ROW_COUNT() AS "deleted rows:";
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EOT
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)
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fi
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if table_exists dbg_filename
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then
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echo -n "removing widowed entries in dbg_filename ..."
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echo " "$(
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$MYSQL $DB <<EOT
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DELETE FROM dbg_filename
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WHERE variant_id NOT IN
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(SELECT id FROM variant);
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SELECT ROW_COUNT() AS "deleted rows:";
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EOT
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)
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fi
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if table_exists dbg_mapping
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then
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echo -n "removing widowed entries in dbg_mapping ..."
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echo " "$(
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$MYSQL $DB <<EOT
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DELETE FROM dbg_mapping
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WHERE variant_id NOT IN
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(SELECT id FROM variant);
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SELECT ROW_COUNT() AS "deleted rows:";
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EOT
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)
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fi
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echo "done. Consider running \`mysqloptimize $DB' now."
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