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	Values greater than IV_MAX were incorrectly converted to SQL, for instance ~0 would become -1 rather than 18446744073709551615 (on a 64-bit machine). Dagfinn Ilmari Mannsåker, adjusted a bit by me Discussion: https://postgr.es/m/d8jtvskjzzs.fsf@dalvik.ping.uio.no
		
			
				
	
	
		
			261 lines
		
	
	
		
			4.9 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			261 lines
		
	
	
		
			4.9 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
CREATE EXTENSION jsonb_plperlu CASCADE;
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NOTICE:  installing required extension "plperlu"
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CREATE FUNCTION testHVToJsonb() RETURNS jsonb
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LANGUAGE plperlu
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TRANSFORM FOR TYPE jsonb
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AS $$
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$val = {a => 1, b => 'boo', c => undef};
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return $val;
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$$;
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SELECT testHVToJsonb();
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          testhvtojsonb          
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---------------------------------
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 {"a": 1, "b": "boo", "c": null}
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(1 row)
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CREATE FUNCTION testAVToJsonb() RETURNS jsonb
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LANGUAGE plperlu
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TRANSFORM FOR TYPE jsonb
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AS $$
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$val = [{a => 1, b => 'boo', c => undef}, {d => 2}];
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return $val;
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$$;
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SELECT testAVToJsonb();
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                testavtojsonb                
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---------------------------------------------
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 [{"a": 1, "b": "boo", "c": null}, {"d": 2}]
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(1 row)
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CREATE FUNCTION testSVToJsonb() RETURNS jsonb
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LANGUAGE plperlu
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TRANSFORM FOR TYPE jsonb
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AS $$
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$val = 1;
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return $val;
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$$;
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SELECT testSVToJsonb();
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 testsvtojsonb 
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---------------
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 1
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(1 row)
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CREATE FUNCTION testUVToJsonb() RETURNS jsonb
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LANGUAGE plperlu
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TRANSFORM FOR TYPE jsonb
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as $$
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$val = ~0;
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return $val;
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$$;
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-- this might produce either 18446744073709551615 or 4294967295
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SELECT testUVToJsonb() IN ('18446744073709551615'::jsonb, '4294967295'::jsonb);
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 ?column? 
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----------
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 t
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(1 row)
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-- this revealed a bug in the original implementation
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CREATE FUNCTION testRegexpResultToJsonb() RETURNS jsonb
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LANGUAGE plperlu
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TRANSFORM FOR TYPE jsonb
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AS $$
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return ('1' =~ m(0\t2));
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$$;
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SELECT testRegexpResultToJsonb();
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 testregexpresulttojsonb 
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-------------------------
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 0
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(1 row)
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CREATE FUNCTION roundtrip(val jsonb, ref text = '') RETURNS jsonb
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LANGUAGE plperlu
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TRANSFORM FOR TYPE jsonb
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AS $$
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use Data::Dumper;
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$Data::Dumper::Sortkeys = 1;
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$Data::Dumper::Indent = 0;
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elog(INFO, Dumper($_[0]));
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die 'unexpected '.(ref($_[0]) || 'not a').' reference'
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    if ref($_[0]) ne $_[1];
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return $_[0];
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$$;
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SELECT roundtrip('null') is null;
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INFO:  $VAR1 = undef;
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 ?column? 
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----------
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 t
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(1 row)
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SELECT roundtrip('1');
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INFO:  $VAR1 = '1';
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 roundtrip 
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-----------
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 1
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(1 row)
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-- skip because Data::Dumper produces a platform-dependent spelling of infinity
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-- SELECT roundtrip('1E+131071');
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SELECT roundtrip('-1');
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INFO:  $VAR1 = '-1';
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 roundtrip 
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-----------
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 -1
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(1 row)
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SELECT roundtrip('1.2');
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INFO:  $VAR1 = '1.2';
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 roundtrip 
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-----------
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 1.2
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(1 row)
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SELECT roundtrip('-1.2');
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INFO:  $VAR1 = '-1.2';
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 roundtrip 
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-----------
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 -1.2
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(1 row)
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SELECT roundtrip('"string"');
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INFO:  $VAR1 = 'string';
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 roundtrip 
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-----------
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 "string"
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(1 row)
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SELECT roundtrip('"NaN"');
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INFO:  $VAR1 = 'NaN';
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 roundtrip 
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-----------
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 "NaN"
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(1 row)
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SELECT roundtrip('true');
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INFO:  $VAR1 = '1';
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 roundtrip 
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-----------
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 1
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(1 row)
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SELECT roundtrip('false');
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INFO:  $VAR1 = '0';
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 roundtrip 
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-----------
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 0
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(1 row)
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SELECT roundtrip('[]', 'ARRAY');
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INFO:  $VAR1 = [];
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 roundtrip 
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-----------
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 []
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(1 row)
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SELECT roundtrip('[null, null]', 'ARRAY');
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INFO:  $VAR1 = [undef,undef];
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  roundtrip   
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--------------
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 [null, null]
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(1 row)
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SELECT roundtrip('[1, 2, 3]', 'ARRAY');
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INFO:  $VAR1 = ['1','2','3'];
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 roundtrip 
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-----------
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 [1, 2, 3]
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(1 row)
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SELECT roundtrip('[-1, 2, -3]', 'ARRAY');
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INFO:  $VAR1 = ['-1','2','-3'];
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  roundtrip  
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-------------
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 [-1, 2, -3]
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(1 row)
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SELECT roundtrip('[1.2, 2.3, 3.4]', 'ARRAY');
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INFO:  $VAR1 = ['1.2','2.3','3.4'];
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    roundtrip    
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-----------------
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 [1.2, 2.3, 3.4]
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(1 row)
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SELECT roundtrip('[-1.2, 2.3, -3.4]', 'ARRAY');
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INFO:  $VAR1 = ['-1.2','2.3','-3.4'];
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     roundtrip     
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-------------------
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 [-1.2, 2.3, -3.4]
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(1 row)
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SELECT roundtrip('["string1", "string2"]', 'ARRAY');
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INFO:  $VAR1 = ['string1','string2'];
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       roundtrip        
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------------------------
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 ["string1", "string2"]
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(1 row)
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SELECT roundtrip('[["string1", "string2"]]', 'ARRAY');
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INFO:  $VAR1 = [['string1','string2']];
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        roundtrip         
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--------------------------
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 [["string1", "string2"]]
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(1 row)
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SELECT roundtrip('{}', 'HASH');
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INFO:  $VAR1 = {};
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 roundtrip 
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-----------
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 {}
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(1 row)
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SELECT roundtrip('{"1": null}', 'HASH');
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INFO:  $VAR1 = {'1' => undef};
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  roundtrip  
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-------------
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 {"1": null}
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(1 row)
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SELECT roundtrip('{"1": 1}', 'HASH');
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INFO:  $VAR1 = {'1' => '1'};
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 roundtrip 
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-----------
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 {"1": 1}
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(1 row)
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SELECT roundtrip('{"1": -1}', 'HASH');
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INFO:  $VAR1 = {'1' => '-1'};
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 roundtrip 
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-----------
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 {"1": -1}
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(1 row)
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SELECT roundtrip('{"1": 1.1}', 'HASH');
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INFO:  $VAR1 = {'1' => '1.1'};
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 roundtrip  
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------------
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 {"1": 1.1}
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(1 row)
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SELECT roundtrip('{"1": -1.1}', 'HASH');
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INFO:  $VAR1 = {'1' => '-1.1'};
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  roundtrip  
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-------------
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 {"1": -1.1}
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(1 row)
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SELECT roundtrip('{"1": "string1"}', 'HASH');
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INFO:  $VAR1 = {'1' => 'string1'};
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    roundtrip     
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------------------
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 {"1": "string1"}
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(1 row)
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SELECT roundtrip('{"1": {"2": [3, 4, 5]}, "2": 3}', 'HASH');
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INFO:  $VAR1 = {'1' => {'2' => ['3','4','5']},'2' => '3'};
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            roundtrip            
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---------------------------------
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 {"1": {"2": [3, 4, 5]}, "2": 3}
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(1 row)
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\set VERBOSITY terse \\ -- suppress cascade details
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DROP EXTENSION plperlu CASCADE;
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NOTICE:  drop cascades to 7 other objects
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