sysbench: add a 'insert ignore' bench test with unique indices (pingc…

…ap#52)

sysbench/oltp_insert_ignore.lua

@@ -0,0 +1,49 @@
+#!/usr/bin/env sysbench --config-file=config
+
+-----------------------------------
+-- Insert Ignore OLTP benchmark
+----------------------------------
+
+require("oltp_common")
+
+function create_table(drv, con, table_num)
+   print(string.format("Creating table 'sbtest%d'...", table_num))
+   local query = string.format([[
+CREATE TABLE sbtest%d(
+  id INTEGER NOT NULL,
+  k INTEGER DEFAULT '0' NOT NULL,
+  c CHAR(120) DEFAULT '' NOT NULL,
+  pad CHAR(60) DEFAULT '' NOT NULL,
+  PRIMARY KEY (id)
+)]],
+      table_num)
+
+   con:query(query)
+
+   print(string.format("Creating a secondary index on 'sbtest%d'...",
+                       table_num))
+   con:query(string.format("CREATE UNIQUE INDEX k_%d ON sbtest%d(k)",
+                           table_num, table_num))
+end
+
+function prepare_statements()
+end
+
+function event()
+  local table_name = "sbtest" .. sysbench.rand.uniform(1, sysbench.opt.tables)
+  local query = string.format("INSERT IGNORE INTO %s (id, k, c, pad) VALUES ", table_name)
+  for i = 1, 5 do
+    -- Convert a uint32_t value to SQL INT
+    local id_val = sysbench.rand.unique() - 2147483648
+    local k_val = sysbench.rand.unique() - 2147483648
+    local c_val = get_c_value()
+    local pad_val = get_pad_value()
+    if i ~= 1 then
+      query = string.format("%s, (%d, %d, '%s', '%s')", query, id_val, k_val, c_val, pad_val)
+    else
+      query = string.format("%s (%d, %d, '%s', '%s')", query, id_val, k_val, c_val, pad_val)
+    end
+  end
+
+  con:query(query)
+end