twitter chatbot "わけち"
Home Page: http://pokosho.com/b/waketi
License: MIT License
I am a software engineer, and I am also a creator 😄 I like ...
01/05 04:03:51:124 AbstractBot DEBUG
studyFromLine 256 <U+1F62D><U+1F62D>
01/05 04:03:51:167 TwitterBot ERROR
study 348 sql error
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1075) ~[mysql-connector-java-5.1.13-bin.jar:na]
mysql> explain SELECT prefix02,suffix,chain_ID,prefix01,start FROM chain WHERE prefix01=44 order by rand() LIMIT 1;
+----+-------------+-------+------------+------+----------------+----------------+---------+-------+---------+----------+---------------------------------+
| id | select_type | table | partitions | type | possible_keys | key | key_len | ref | rows | filtered | Extra |
+----+-------------+-------+------------+------+----------------+----------------+---------+-------+---------+----------+---------------------------------+
| 1 | SIMPLE | chain | NULL | ref | INDEX_PREFIX01 | INDEX_PREFIX01 | 9 | const | 1986170 | 100.00 | Using temporary; Using filesort |
+----+-------------+-------+------------+------+----------------+----------------+---------+-------+---------+----------+---------------------------------+
05/19 01:00:10:706 AbstractBot INFO
studyFromLine 232 studyFromLine:π_11(S^3) = Z/2
05/19 01:00:10:707 AbstractBot DEBUG
studyFromLine 238 it's not Japanese
05/19 01:00:10:722 TwitterBot ERROR
main 631 system error
java.lang.NullPointerException: null
at java.util.ArrayList.addAll(ArrayList.java:577) ~[na:1.8.0_25]
at com.pokosho.bot.twitter.TwitterBot.study(TwitterBot.java:316
java.lang.StringIndexOutOfBoundsException: String index out of range: -1
AbstractBot.java:497
空文字がくるケースがある？
π_22(S^6) = Z/504 + (Z/2)^2
01/16 03:00:10:849 AbstractBot INFO
studyFromLine 232 studyFromLine:π_22(S^6) = Z/504 + (Z/2)^2
01/16 03:00:10:850 AbstractBot DEBUG
studyFromLine 238 it's not Japanese
01/16 03:00:10:873 TwitterBot ERROR
main 631 system error
java.lang.NullPointerException: null
at java.util.ArrayList.addAll(ArrayList.java:577) ~[na:1.8.0_25]
https://github.com/kaibadash/waketi/blob/master/src/com/pokosho/bot/AbstractBot.java#L106
order by rand() is slow.
see :SQL Antipattern: random selection
U+1F3B6
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