172 lines
7.1 KiB
MySQL
172 lines
7.1 KiB
MySQL
----------------------------------------------------------------------------------------
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--
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-- File name: cs_LGWR_chart.sql
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--
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-- Purpose: Log Writer LGWR Slow Writes Duration Chart - from current LGWR trace
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--
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-- Author: Carlos Sierra
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--
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-- Version: 2023/01/03
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--
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-- Usage: Execute connected to CDB or PDB
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--
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-- Enter range of dates when requested.
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--
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-- Example: $ sqlplus / as sysdba
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-- SQL> @cs_LGWR_chart.sql
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--
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-- Notes: Developed and tested on 19c
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--
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---------------------------------------------------------------------------------------
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--
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@@cs_internal/cs_primary.sql
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-- @@cs_internal/cs_cdb_warn.sql
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@@cs_internal/cs_set.sql
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@@cs_internal/cs_def.sql
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@@cs_internal/cs_file_prefix.sql
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--
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DEF cs_script_name = 'cs_LGWR_chart';
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--
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DEF cs_hours_range_default = '24';
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--
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@@cs_internal/cs_sample_time_from_and_to.sql
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@@cs_internal/cs_snap_id_from_and_to.sql
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--
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-- @@cs_internal/&&cs_set_container_to_cdb_root.
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--
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SELECT '&&cs_file_prefix._&&cs_script_name.' cs_file_name FROM DUAL;
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--
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DEF report_title = 'Log Writer LGWR Slow Writes Duration between &&cs_sample_time_from. and &&cs_sample_time_to. UTC';
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DEF chart_title = '&&report_title.';
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DEF vaxis_title = 'Milliseconds';
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DEF xaxis_title = '';
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--
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-- (isStacked is true and baseline is null) or (not isStacked and baseline >= 0)
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--DEF is_stacked = "isStacked: false,";
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DEF is_stacked = "isStacked: true,";
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--DEF vaxis_baseline = ", baseline:&&cs_num_cpu_cores., baselineColor:'red'";
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DEF vaxis_baseline = "";
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--DEF chart_foot_note_2 = "<br>2)";
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DEF chart_foot_note_2 = '<br>2) &&xaxis_title.';
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DEF chart_foot_note_3 = "<br>";
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DEF chart_foot_note_4 = "";
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DEF report_foot_note = 'SQL> @&&cs_script_name..sql "&&cs_sample_time_from." "&&cs_sample_time_to."';
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--
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@@cs_internal/cs_spool_head_chart.sql
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--
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PRO ,{label:'Write Duration', id:'01', type:'number'}
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PRO ]
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SET HEA OFF PAGES 0;
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/****************************************************************************************/
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WITH
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FUNCTION /* cs_LGWR_chart */ num_format (p_number IN NUMBER, p_round IN NUMBER DEFAULT 0)
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RETURN VARCHAR2 IS
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BEGIN
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IF p_number IS NULL OR ROUND(p_number, p_round) <= 0 THEN
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RETURN 'null';
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ELSE
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RETURN TO_CHAR(ROUND(p_number, p_round));
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END IF;
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END num_format;
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/****************************************************************************************/
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lgwr AS (
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SELECT v4.timestamp,
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-- TO_CHAR(v4.timestamp, 'YYYY-MM-DD"T"HH24:MI:SS.FF3') AS timestamp,
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-- v4.payload_size AS payload_size_display,
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-- v4.write_duration AS write_duration_display,
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TO_NUMBER(REGEXP_REPLACE(v4.write_duration, '[^0-9]', '')) AS write_duration_ms,
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TO_NUMBER(REGEXP_REPLACE(v4.payload_size, '[^0-9]', '')) AS payload_size_kb,
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ROUND((TO_NUMBER(REGEXP_REPLACE(v4.payload_size, '[^0-9]', ''))) / NULLIF(TO_NUMBER(REGEXP_REPLACE(v4.write_duration, '[^0-9]', '')) / POWER(10,3), 0)) AS kbps
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FROM
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(
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SELECT v3.line_number,
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v3.timestamp,
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v3.write_duration,
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v3.payload_size,
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ROW_NUMBER() OVER (PARTITION BY v3.timestamp ORDER BY v3.payload_size DESC) AS rn
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FROM
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(
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SELECT v2.line_number,
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LAST_VALUE(v2.timestamp) IGNORE NULLS OVER (ORDER BY v2.line_number ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) AS timestamp,
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v2.write_duration,
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v2.payload_size
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FROM
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(
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SELECT v1.line_number,
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CASE v1.line_type WHEN 'DATE' THEN CAST(TO_TIMESTAMP_TZ(v1.line_text, 'YYYY-MM-DD"T"HH24:MI:SS.FF6TZH:TZM') AS TIMESTAMP) END AS timestamp,
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CASE v1.line_type WHEN 'WRITE' THEN SUBSTR(v1.line_text, 1, INSTR(v1.line_text, ', size ') - 1) END AS write_duration,
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CASE v1.line_type WHEN 'WRITE' THEN SUBSTR(v1.line_text, INSTR(v1.line_text, ', size ') + 7) END AS payload_size
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FROM
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(
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SELECT line_number,
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CASE
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-- WHEN payload LIKE CHR(10)||'*** '||TO_CHAR(SYSDATE, 'YYYY')||'%' THEN 'DATE' -- failed after 2023-01-01
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WHEN payload LIKE CHR(10)||'*** ____-__-__T__:__:__%' THEN 'DATE'
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WHEN payload LIKE 'Warning: log write elapsed time %' THEN 'WRITE'
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END AS line_type,
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CASE
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-- WHEN payload LIKE CHR(10)||'*** '||TO_CHAR(SYSDATE, 'YYYY')||'%' THEN SUBSTR(SUBSTR(payload, 1, INSTR(payload, '(') - 2), INSTR(payload, TO_CHAR(SYSDATE, 'YYYY'))) -- failed after 2023-01-01
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WHEN payload LIKE CHR(10)||'*** ____-__-__T__:__:__%' THEN SUBSTR(SUBSTR(payload, 1, INSTR(payload, '(') - 2), INSTR(payload, '20'))
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WHEN payload LIKE 'Warning: log write elapsed time %' THEN REPLACE(payload, 'Warning: log write elapsed time ')
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END AS line_text
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FROM v$diag_trace_file_contents
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WHERE trace_filename = (SELECT LOWER(b.name)||'_'||LOWER(p.pname)||'_'||p.spid||'.trc' AS lgwr_trc FROM v$diag_info d, v$process p, v$database b WHERE d.name = 'Diag Trace' AND p.pname = 'LGWR')
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) v1
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WHERE v1.line_type IN ('DATE', 'WRITE')
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AND v1.line_text IS NOT NULL
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) v2
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) v3
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WHERE v3.write_duration||payload_size IS NOT NULL
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AND timestamp IS NOT NULL
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) v4
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WHERE v4.rn = 1
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-- AND v4.timestamp > SYSTIMESTAMP - INTERVAL '1' MINUTE
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-- ORDER BY v4.line_number
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),
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/****************************************************************************************/
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list AS (
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SELECT timestamp AS time,
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write_duration_ms AS value_01
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FROM lgwr
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WHERE timestamp >= TO_TIMESTAMP('&&cs_sample_time_from.', '&&cs_datetime_full_format.')
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AND timestamp <= TO_TIMESTAMP('&&cs_sample_time_to.', '&&cs_datetime_full_format.')
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)
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/****************************************************************************************/
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SELECT /*+ MONITOR GATHER_PLAN_STATISTICS */
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', [new Date('||
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TO_CHAR(q.time, 'YYYY')|| /* year */
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','||(TO_NUMBER(TO_CHAR(q.time, 'MM')) - 1)|| /* month - 1 */
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','||TO_CHAR(q.time, 'DD')|| /* day */
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','||TO_CHAR(q.time, 'HH24')|| /* hour */
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','||TO_CHAR(q.time, 'MI')|| /* minute */
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','||TO_CHAR(q.time, 'SS')|| /* second */
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')'||
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','||num_format(q.value_01, 0)||
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']'
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FROM list q
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ORDER BY
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q.time
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/
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/****************************************************************************************/
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SET HEA ON PAGES 100;
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--
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-- [Line|Area|SteppedArea|Scatter]
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DEF cs_chart_type = 'Scatter';
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-- disable explorer with "//" when using Pie
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DEF cs_chart_option_explorer = '';
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-- enable pie options with "" when using Pie
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DEF cs_chart_option_pie = '//';
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-- use oem colors
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DEF cs_oem_colors_series = '//';
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DEF cs_oem_colors_slices = '//';
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-- for line charts
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DEF cs_curve_type = '//';
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--
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@@cs_internal/cs_spool_id_chart.sql
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@@cs_internal/cs_spool_tail_chart.sql
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--
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-- @@cs_internal/&&cs_set_container_to_curr_pdb.
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--
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@@cs_internal/cs_undef.sql
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@@cs_internal/cs_reset.sql
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-- |