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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
		
			
				
	
	
		
			234 lines
		
	
	
		
			4.1 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			234 lines
		
	
	
		
			4.1 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
| CREATE EXTENSION jsonb_plperl CASCADE;
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| NOTICE:  installing required extension "plperl"
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| CREATE FUNCTION testHVToJsonb() RETURNS jsonb
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| LANGUAGE plperl
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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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| 
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| CREATE FUNCTION testAVToJsonb() RETURNS jsonb
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| LANGUAGE plperl
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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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| 
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| CREATE FUNCTION testSVToJsonb() RETURNS jsonb
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| LANGUAGE plperl
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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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| 
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| CREATE FUNCTION testUVToJsonb() RETURNS jsonb
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| LANGUAGE plperl
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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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| 
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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 plperl
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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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| 
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| CREATE FUNCTION roundtrip(val jsonb, ref text = '') RETURNS jsonb
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| LANGUAGE plperl
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| TRANSFORM FOR TYPE jsonb
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| AS $$
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| # can't use Data::Dumper, but let's at least check for unexpected ref type
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| die 'unexpected '.(ref($_[0]) || 'not a').' reference'
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|     if ref($_[0]) ne $_[1];
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| return $_[0];
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| $$;
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| SELECT roundtrip('null') is null;
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|  ?column? 
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| ----------
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|  t
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| (1 row)
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| 
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| SELECT roundtrip('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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| 
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| SELECT roundtrip('1E+131071');
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| ERROR:  cannot convert infinity to jsonb
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| CONTEXT:  PL/Perl function "roundtrip"
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| SELECT roundtrip('-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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| 
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| SELECT roundtrip('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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| 
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| SELECT roundtrip('-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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| 
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| SELECT roundtrip('"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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| 
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| SELECT roundtrip('"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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| 
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| SELECT roundtrip('true');
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|  roundtrip 
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| -----------
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|  1
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| (1 row)
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| 
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| SELECT roundtrip('false');
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|  roundtrip 
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| -----------
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|  0
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| (1 row)
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| 
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| SELECT roundtrip('[]', 'ARRAY');
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|  roundtrip 
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| -----------
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|  []
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| (1 row)
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| 
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| SELECT roundtrip('[null, null]', 'ARRAY');
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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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| 
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| SELECT roundtrip('[1, 2, 3]', 'ARRAY');
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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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| 
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| SELECT roundtrip('[-1, 2, -3]', 'ARRAY');
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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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| 
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| SELECT roundtrip('[1.2, 2.3, 3.4]', 'ARRAY');
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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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| 
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| SELECT roundtrip('[-1.2, 2.3, -3.4]', 'ARRAY');
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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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| 
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| SELECT roundtrip('["string1", "string2"]', 'ARRAY');
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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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| 
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| SELECT roundtrip('[["string1", "string2"]]', 'ARRAY');
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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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| 
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| SELECT roundtrip('{}', 'HASH');
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|  roundtrip 
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| -----------
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|  {}
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| (1 row)
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| 
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| SELECT roundtrip('{"1": null}', 'HASH');
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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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| 
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| SELECT roundtrip('{"1": 1}', 'HASH');
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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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| 
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| SELECT roundtrip('{"1": -1}', 'HASH');
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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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| 
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| SELECT roundtrip('{"1": 1.1}', 'HASH');
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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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| 
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| SELECT roundtrip('{"1": -1.1}', 'HASH');
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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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| 
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| SELECT roundtrip('{"1": "string1"}', 'HASH');
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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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| 
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| SELECT roundtrip('{"1": {"2": [3, 4, 5]}, "2": 3}', 'HASH');
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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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| 
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| \set VERBOSITY terse \\ -- suppress cascade details
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| DROP EXTENSION plperl CASCADE;
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| NOTICE:  drop cascades to 7 other objects
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