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feature: Added support for simple CAST #39

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@mlilius mlilius commented May 20, 2020

This will not handle all versions of CAST but will handle a simple case like CAST(pct*100 AS int)

The query mentioned in #9 was used as the test.

select
 concat(dsw_cluster_name,',',logic_pod_name) as event_obj,
 concat(dsw_cluster_name,',',logic_pod_name, ' PFC STORM. 详情: ',
 '流量突跃 ',
 cast(FLOW_RX_BPS_RATE100 as int),
 '%(RX)',
 '; ',
 cast(FLOW_TX_BPS_RATE100 as int),
 '%(TX)',
 '; PFC 突增 ',
 cast(PFC_RX_PPS_RATE*100 as int),
 '%(RECV)') as brief
from SOURCE_BASIC_EVENT_POD_FLOW_AND_PFC_TREND
where win_end >= '2020-05-19 21:14:12'
 and win_end < '2020-05-20 21:14:12'
 and PFC_RX_PPS_RATE >= 100
 and (FLOW_RX_BPS_RATE <= -0.2 and FLOW_TX_BPS_RATE <= -0.2)

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albin3 commented May 21, 2020

hello @mlilius , CHARACTER SET grammar should be supported in this feature follows https://dev.mysql.com/doc/refman/5.7/en/cast-functions.html . see examples : "SELECT CAST('test' AS CHAR CHARACTER SET utf8 COLLATE utf8_bin);"

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